@charset "UTF-8";
dialog {
  display: none;
  position: absolute;
  margin: auto;
  border: solid;
  padding: 1em;
  background: white;
  color: black;
}

dialog[open] {
  display: block;
}

dialog::backdrop {
  position: fixed;
  top: 0px;
  right: 0px;
  bottom: 0px;
  left: 0px;
  background: rgba(0, 0, 0, 0.1);
}


details {
  display: block;
}

summary {
  display: block;
}

/* IE 11 ? */
address, aside, main, section{
  display: block;
}

address {
  font-style: normal;
}

input, textarea, select {
  -ms-touch-action: manipulation;
  touch-action: manipulation;
}

button {
  display: inline-block;
  padding: 2px 12px;
  margin: 3px;
  line-height: 1.5em;
  color: #333333;
  text-align: center;
  vertical-align: middle;
  cursor: pointer;
  background-color: #F5F5F5;
  background-image: linear-gradient(to bottom, #FFFFFF, #E6E6E6);
  border: 1px solid #CCCCCC;
  border-radius: 0px;
}

button:hover,
button:focus {
  background-color: #C5C5C5;
}

button:active {
  background-color: #A5A5A5;
}

button:disabled,
button:hover:disabled {
  color: graytext;
  opacity: 0.7;
  box-shadow: none;
}

select,
textarea,
input[type="number"],
input[type="text"] {
  width: 206px;
  display: inline-block;
  height: 26px;
  padding: 2px 6px;
  margin: 1px;
  font-size: 15px;
  line-height: 20px;
  color: black;
  vertical-align: middle;
  border-radius: 0px;
  background: white;
  border: 1px solid #3e3e3e;
}

input[type="number"]:disabled,
input[type="text"]:disabled {
  background: #EBEBE4;
  color: #545454;
}

/*To nail buttons in Chrome 49*/
input[type="number"] {
  padding: 0px;
  padding-left: 6px;
  line-height: 24px;
}

textarea {
  height: auto;
  -moz-resize: both;
  resize: both;
}

/* контейнер с матрицами и их решением */
#bigtable{
	 font-family: "Times New Roman", Times, serif;
table-layout: fixed;
}
/* поле с решением */
#bigtable .actline{
	font-size: 90%;	
}
/* [tabindex] is needed for IE 11 to not draw the outline on a <div> with `display: table-cell` */
menclose[tabindex]:focus,
mrow[tabindex]:focus,
mtd[tabindex]:focus,
div[tabindex]:focus, /* .matrix-table-inner or .matrix-table */
img[tabindex]:focus,
a:focus,
summary:focus,
button:focus,
input:focus,
select:focus,
textarea:focus {
box-shadow: 0 0 3px #F88C00;
}

::-moz-focus-inner {
  padding: 0px;
  border: 0px;
}

#bigtable a:focus,
#bigtable a:hover,
#bigtable a:active,
#bigtable summary:focus,
#bigtable summary:hover,
#bigtable summary:active {
    text-decoration: none;
}

#bigtable a:active,
summary:active {
  color: #2163A4;
  text-decoration: none;	
}

/* кнопки для названия действий с матрицами */
input, button, select, textarea, optgroup, option {
  font-family: "Clear Sans", Arial, sans-serif;	
  font-size: 0.85em;
font-weight: 300;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}

/* note: more specific rules are used to increase the priority */
textarea.invalid,
input[type="number"].invalid,
input[type="text"].invalid,
.a-input.invalid {
}


#bigtable label,
#bigtable input[type="checkbox"],
#bigtable button {
  cursor: pointer;
}

#header {
  width: 100%;
  padding-bottom: 2px;
  border-bottom: 1px solid gray;
  margin-bottom: 12px;
  display: table;
}

#right {
  vertical-align: top;
  padding: 8px;
  padding-top: 0px;
}

#bigtable {
  display: table;
  width: 100%;
  table-layout: fixed;
}

#bigtable > div {
  display: table-cell;
}



#resdiv {
  text-align: left;
  vertical-align: middle;
  padding-left: 2px;
  padding-right: 2px;
  border: 0px;
  /*overflow-y: hidden;*/
  position: relative;
  border-bottom: 1px solid silver;
}

.line {
  display: table;
  clear: none;
  width: 100%;
  padding: 0px;
}

.line > div {
  display: table-row;
}

.line > div > div {
  display: table-cell;
  line-height: 28px; /* to avoid jerks with #frdigitsspan[hidden] */
}

.text-align-right {
  text-align: right;
}

/* workaround for line-breaking issue in Chrome, IE */
.bbox > span {
  display: inline-block;
}

.change-button {
  height: auto;
  width: auto;
}

.bbox > button,
.bbox > div > button {
  width: 11em;
  white-space: nowrap;
  -o-text-overflow: ellipsis;
  text-overflow: ellipsis;
  overflow: hidden;
}

.bbox > .button-before-input > button {
  width: 11em;
}

.bbox > .button-before-input > .a-input > input,
.bbox > .button-before-input > input {
  width: 2em;
}

.det-buttons > div > .button-before-input > button {
  width: 16em;
}

.det-buttons > div > .button-before-input > .a-input > input,
.det-buttons > div > .button-before-input > input {
  width: 3em;
}

.det-buttons > div > button {
  width: 19em;
  white-space: nowrap;
  -o-text-overflow: ellipsis;
  text-overflow: ellipsis;
  overflow: hidden;
}

.button-after-input,
.button-before-input {
  white-space: nowrap;
}

.button-after-input > .a-input > input,
.button-after-input > input,
.button-before-input > button {
  margin-right: 0px;
  border-right: 0px;
  border-top-right-radius: 0px;
  border-bottom-right-radius: 0px;
}

.button-after-input > button,
.button-before-input > input,
.button-before-input > .a-input > input {
  margin-left: 0px;
  border-top-left-radius: 0px;
  border-bottom-left-radius: 0px;
}

.expression-input-container > .button-after-input > input {
  width: 21em;
}

.expression-input-container > .button-after-input > .a-input > input {
  width: 21em;
  max-width: 100%;
}

.expression-input-container > .button-after-input > .a-input {
  min-width: 8em;/* IE 8 */
  max-width: 50%;
  max-width: -webkit-calc(100% - 4em);
  max-width: -moz-calc(100% - 4em);
  max-width: calc(100% - 4em);
}

.expression-input-container {
  text-align: center;
}

.nowrap {
  white-space: nowrap;
}

.bbox2 > div > button {
  width: 6em;
  text-align: center;
}

.bbox2 > div > .change-button {
  width: auto;
}

.bbox2 > div > button > .operator {
  display: inline-block;
  width: 1em;
  vertical-align: middle;
}

hr {
	width: 100%;
	text-align:center;
 	border: 0;
    height: 1px;
    background-image: -webkit-linear-gradient(left, rgba(0,0,0,0), hsla(120,73%,75%,1.00), rgba(0,0,0,0)); 
    background-image:    -moz-linear-gradient(left, rgba(0,0,0,0), hsla(120,73%,75%,1.00), rgba(0,0,0,0)); 
    background-image:     -ms-linear-gradient(left, rgba(0,0,0,0), hsla(120,73%,75%,1.00), rgba(0,0,0,0)); 
    background-image:      -o-linear-gradient(left, rgba(0,0,0,0), hsla(120,73%,75%,1.00), rgba(0,0,0,0)); 
}

.insert-buttons > div > button {
  width: 8em;
}

.actline {
  text-align: left;
  border-top: 1px solid #999999;
  padding-bottom: 16px;
  padding-top: 6px;
  clear: right;
}

.actline > .insert-buttons {
  float: right;
}



#bigtable p {
  margin: 0.5em 0em;
  padding: 0em 1em;
}

#bigtable strong {
  color: #CC3333;
}

#bigtable button {
  vertical-align: middle;
  height: auto;
}

.main {
  display: table;
  width: 100%;
  border-spacing: 0px;
  border: 0px;
  text-align: center;
  empty-cells: show;
  table-layout: fixed;
}

.main > div {
  display: table-row;
}

.main > div > div {
  display: table-cell;
}

.main > div > div {
  vertical-align: middle;
  text-align: center;
  border: 0px;
  padding: 2px;
  margin: 0px;
}

.main > div > div.tdmatrix {
  width: 46%;
  vertical-align: top;
}

#bigtable .top {
  vertical-align: top;
}

/* matrix */

.expression-input {
  font-family: monospace;
}

.matrix-table-inner > table {
  border: 0px;
  text-indent: 0px;
  border-spacing: 0px;
  border-collapse: separate;
  margin-left: auto;
  margin-right: auto;
  empty-cells: show;
  white-space: nowrap;
}

.matrix-table-cell {
  vertical-align: middle;
  padding: 0px;
  border: 0px;
}

.matrix-table-input {
  margin: 1px;
  text-align: right;
  max-width: 3.8em;
  min-width: 3.8em;
  width: 100em;
}

.matrix-table > div {
  position: relative;
}

.textarea > .matrix-table-inner > table {
  display: none;
}

.cells > .matrix-table-inner > .textarea-container {
  display: none;
}

/* Opera 12 needs wrap="off" */
textarea[wrap="off"] {
  white-space: pre;
  word-wrap: normal;
}

.matrix-table-textarea {
  overflow: auto;
  width: 100%;
  min-width: 230px;
  min-height: 90px;
  -moz-tab-size: 4;
  -o-tab-size: 4;
  tab-size: 4;
}

.langEnOnly,
.langRuOnly {
  display: none;
}

.langEnOnly:lang(en),
.langRuOnly:lang(ru) {
  display: block;
}

/* (!) more specific selectors */

a.langEnOnly,
a.langRuOnly {
  display: none;
}

a.langEnOnly:lang(en),
a.langRuOnly:lang(ru) {
  display: block;
}

/* .matrix-menu */

[draggable="true"] {
  cursor: move;
}
.no-draggable [draggable="true"] {
  cursor: default;
}
/* this can make it draggable in Opera 12 */
menclose[href="#"] {
 -o-link: '#';
 -o-link-source: current;
}

.matrix-menu-show {
  /* button */
  box-shadow: none;
  border: none;
  background-color: transparent;
  line-height: 8px;
  display: inline-block;
  width: 16px;
  height: 16px;
  position: absolute;
  right: -12px;
  bottom: 0px;
  background-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABGdBTUEAAK/INwWK6QAAABl0RVh0U29mdHdhcmUAQWRvYmUgSW1hZ2VSZWFkeXHJZTwAAAD+SURBVHjaYvz//z8DJYCJgUIwDAxggTFycnL+MzMzM4AwOzs7Azc3NwMnJyeY5uLiAouBMBsbGwMw4L96e3vzoBjw69evOXJycinq6uoMrKysYIUwDOKDMMjwJ0+e/GdkZJwM08eIHI0ZGRkLgIbEgwz58+cPAxMTE9hWHh4esEvev3/P8OXLl46QkJBKrGEwY8aMBKANi2/dugW2GWgTGLOwsIBsZnj+/Hk/smYMF8BAdnb2SllZ2TAtLS2wQS9evADZPr+wsDAJXS0jrpSYm5u7Rl5ePhjk9zdv3ixtbm6OwRsL6AAYqBFAZ68HekG/v78/Bpc6xtG8wAAQYADNAlnnEq1XFAAAAABJRU5ErkJggg==");
  cursor: pointer;
  padding: 4px;
  background-repeat: no-repeat;
  background-position: center center;
  /*TODO: fix ? */
  z-index: 1;
}

.matrix-menu-show-new {
  /* button */
  box-shadow: none;
  border: none;
  background-color: transparent;
  padding: 0px;
  margin: 0px;
  line-height: 12px;
  font-size: 12px;
  color: gray;
  cursor: pointer;
  position: relative;
  left: auto;
  right: auto;
  bottom: auto;
  top: auto;
  background-image: none;
}

.matrix-menu-show::-moz-selection {
  background: transparent;
}

.matrix-menu-show::selection {
  background: transparent;
}

.matrix-menu-show:hover {
  background-color: #CCCCCC;
  background-color: rgba(0, 0, 0, 0.2);
  box-shadow: none;/* ? */
}

.matrix-menu-show:active {
  background-color: #AAAAAA;
}

.matrix-menu-dialog {
  margin: 0px;
  margin-left: -6px;
  padding: 0px;
  z-index: 1;
  background: white;
  border: 1px solid silver;
  list-style: none;
  box-shadow: 0px 0px 12px rgba(0, 0, 0, 0.275);
}

.matrix-menu-dialog > .menuitem {
  padding: 6px;
  display: block;
  font-size: smaller;
  white-space: nowrap;
  cursor: pointer;
  color: #333333;
}

.matrix-menu-dialog > .menuitem:hover {
  background: #BBBBCC;
}

.matrix-menu-dialog > .menuitem:active {
  background: #9999BB;
}

#frdigits {
  width: 5em;
  vertical-align: baseline;
}

.slu-buttons {
  display: inline-table;
}

.slu-buttons > div {
  display: table-row;
}

.slu-buttons > div > button {
  width: 100%;
  min-width: 18em;
}

.language {
  display: table-cell;
  text-align: right;
  vertical-align: top;
}

.clear {
  clear: both;
}

.ads-container {
  text-align: center;
}
.toggle-ads-button {
  border: none;
  background: none;
  box-shadow: none;
  text-decoration: underline;
}

.matrix-table.valid-drop-target,
.expression-input.valid-drop-target {
  outline: 1px solid red;
  outline-offset: -1px;
  box-shadow: inset 0px 0px 12px red;
}

.matrix-table-inner {
  display: inline-block;
}

.matrix-system,
.matrix-determinant,
.matrix-with-braces {
  border: 2px solid #555555;
  padding: 8px;
  display: inline-block;
  border-top-color: transparent;
  border-bottom-color: transparent;
  margin: 0em 0.1em;
}

.matrix-with-braces {
  -webkit-border-radius: 10px/40px;
  -moz-border-radius: 10px/40px;
  border-radius: 10px/40px;/*TODO: fix*/
}

.matrix-determinant {
  padding-top: 0px;
  padding-bottom: 0px;
}

.matrix-system {
  border: none;
  padding: 6px 8px 6px 16px;
  background-image: url("data:image/png;base64,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");
  background-position: 0% 50%;
  background-repeat: no-repeat;
  -moz-background-size: 12px 100%;
  background-size: 12px 100%;
}

input.matrix-table-input {
  font-family: monospace;
  margin: 1px 2px 1px 2px; /* for touch devices */
}

label > .swap-mode-input {
  opacity: 0;
  height: 0px;
  width: 0px;
  margin: 0px;
  padding: 0px;
}
/* нажатая кнопка - ячейки */
label > input:checked + button {
}

.facebook-share-button,
.google-plus-share-button,
.twitter-share-button {
  vertical-align: top;
  display: inline-block;
  padding: 2px 4px 2px 24px;
  border: 1px solid #CCCCCC;
  color: #333333;
  text-decoration: none;
  text-shadow: 0px 1px 0px rgba(255, 255, 255, 0.5);
  border-radius: 2px;
  cursor: pointer;
  overflow: hidden;
  background-color: #F8F8F8;
  background-position: 4px center;
  background-repeat: no-repeat;
}

kbd,
code {
  display: inline-block;
  margin: 2px;
  padding: 0px 5px;
  border: 1px solid #DDDDDD;
  background-color: #F8F8F8;
  border-radius: 2px;
}

kbd {
  border-color: #DDDDDD #BBBBBB #BBBBBB #DDDDDD;
  border-bottom-width: 2px;
  border-radius: 2px;
  font-family: inherit;
  white-space: nowrap;
  /* same width */
  min-width: 1em;
  text-align: center;
}


/* Wikipedia */
a[href*="wikipedia.org"]:after {
  background-image: url("data:image/png;base64,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");
}


@media (min-width: 451px) and (max-width: 800px) {
  html {
    padding: 1px;
    padding-top: 0px;
    padding-bottom: 0px;
  }

  #bigtable,
  #bigtable > div {
    display: block;
  }

  #left {
    width: auto;
  }

  .ads-container {
    display: none;
  }

  body {
	font-size: 1em;
    padding-bottom: 100px;
  }
  .matrix-table-textarea {
    min-width: 200px;
  }
/* кнопки для названия действий с матрицами */
input, button, select, textarea, optgroup, option {
  font-size: 1.2em;
  font-weight: 300;
}
		.art .list-box{
		line-height: 1.15em;
	}
}
@media (min-width: 321px) and (max-width: 450px) {
/* кнопки для названия действий с матрицами */
input, button, select, textarea, optgroup, option {
  font-size: 0.9em;
  font-weight: 300;
}		
	.bbox > button, .bbox > div > button{
		width: auto;
	}
	.art .list-box{
		line-height: 1.05em;
	}
}
@media (max-width: 320px){
/* кнопки для названия действий с матрицами */
input, button, select, textarea, optgroup, option {
  font-size: 0.7em;
  font-weight: 300;
}	
	.bbox > button, .bbox > div > button{
		width: auto;
	}
	select, textarea, input[type="number"], input[type="text"]{
		font-size: 0.6em;
	}
	.art .list-box{
		line-height: 1.05em;
	}
}

/* отображение блоков с матрицами при малых разрешениях */
.width-800{
	display: none;
}
@media screen and (max-width: 860px) {
  .main > div > div.tdmatrix,
  .main > div > div {
    width: auto;
    display: inline-block;
	}
	.width-800{
		display: block;
	}	
}


/* new */

.arrow-with-label {
  display: inline-block;
  vertical-align: baseline;
  padding-left: 16px;
  position: relative;
}

.arrow-with-label[data-type="divide"] {
  padding-left: 0px;
}

.arrow {
  position: absolute;
  top: 0px;
  left: 0px;
  height: 0px;
  width: 12px;
}

.arrow-head-top,
.arrow-head-bottom {
  position: absolute;
  left: -1.5px;
  width: 0px;
  height: 0px;
  border-style: solid;
  border-width: 4px 8px 4px 0px;
  border-color: transparent black transparent transparent;
}

.arrow-head-top {
  top: -3.5px;
}

.arrow-head-bottom {
  bottom: -3.5px;
}

.arrow-line {
  position: absolute;
  left: 0px;
  top: 0px;
  bottom: 0px;
  right: 0px;
  border: 1px solid black;
  border-left: 0px;
}

.footer-table {
  display: table;
  table-layout: fixed;
  width: 100%;
}
.footer-table > div {
  display: table-cell;
  width: 19%;
  text-align: left;
}
.footer-table > div + div {
  display: table-cell;
  width: 62%;
  text-align: center;
}
.footer-table > div + div + div {
  display: table-cell;
  width: 19%;
  text-align: right;
}

.input-example-code {
  padding: 0.809em;
}

/* a <div> cannot be a child <code> (Firefox 3.6.28) + clipboard.js */
.input-example-code > span {
  display: block;
}

#results-container {
  will-change: transform;
  position: relative;
  margin: 0px;
  padding: 0px;
  list-style: none;
}

.relative {
  position: relative;
}
/* знак вопроса для всплывающего диологовога окна */
.question-icon {
  position: absolute;
  top: -1em;
  text-align: center;
  width: 1em;
  margin-left: -0.5em;
  left: 50%;
  display: inline-block;
  background-color: #BCDBEA;
  -webkit-border-radius: 50%;
  -moz-border-radius: 50%;
  border-radius: 50%;
}

[hidden] {
  display: none;
}

/*TODO: remove ?*/
.highlight {
  background-color: antiquewhite;
}
/* всплывающее диалоговое окно при наведении на знак вопроса*/
.tooltip-dialog {
  padding: 0.25em;
  margin: 0.25em;	
  max-width: 18em;/*?*/	
  z-index: 1;
  border-radius: 0px;
  pointer-events: none;
  font-family: "Times New Roman", Times, serif;	
  font-size: 75%;
}
.tooltip-dialog,
.tooltip-arrow {
  background-color:aliceblue;
  border: none;
	-webkit-box-shadow: 0px 2px 10px 2px hsla(227,100%,79%,0.67);
	-moz-box-shadow: 0px 2px 10px 2px hsla(227,100%,79%,0.67);
	box-shadow: 0px 2px 10px 4px hsla(227,100%,79%,0.67);		
}

.unfocused-placeholder:-webkit-input-placeholder {
  color: silver;
  opacity: 1;
}
.unfocused-placeholder::-webkit-input-placeholder {
  color: silver;
  opacity: 1;
}
.unfocused-placeholder:-moz-placeholder {
  color: silver;
  opacity: 1;
}
.unfocused-placeholder::-moz-placeholder {
  color: silver;
  opacity: 1;
}
.unfocused-placeholder:-ms-input-placeholder {
  color: silver;
  opacity: 1;
}
.unfocused-placeholder::-ms-input-placeholder {
  color: silver;
  opacity: 1;
}
.unfocused-placeholder::placeholder {
  color: silver;
  opacity: 1;
}

.unfocused-placeholder:focus:-webkit-input-placeholder {
  color: transparent;
}
.unfocused-placeholder:focus::-webkit-input-placeholder {
  color: transparent;
}
.unfocused-placeholder:focus:-moz-placeholder {
  color: transparent;
}
.unfocused-placeholder:focus::-moz-placeholder {
  color: transparent;
}
.unfocused-placeholder:focus:-ms-input-placeholder {
  color: transparent;
}
.unfocused-placeholder:focus::-ms-input-placeholder {
  color: transparent;
}
.unfocused-placeholder:focus::placeholder {
  color: transparent;
}

input.matrix-table-input.far {
  opacity: 0.3333333333333333;
}
input.matrix-table-input.far:focus,
input.matrix-table-input.far:hover {
  opacity: 1;
}
span.far {
  opacity: 0.3333333333333333;
}

#advices {
  /*
  padding: 1em;
  margin-top: 1em;
  */
}

#examples > div > details > div > ul > li > a {
  display: inline-block;
}

math {
  display: inline-block;
  text-indent: 0px;
}

.indented {
  margin-left: 12px;
  border-left: 1px solid silver;
  padding-left: 12px;
}

menclose[href="#"] {
  color: #242424;
}
.some-details-table {
  vertical-align: top;
  display: inline-table;
}
.some-details-table > tbody > tr > td:first-child {
  text-align: left;
  padding-bottom: 0.5em;
  border-right: 2px solid #CB8087;
}
span[data-custom-paint="custom-menclose"] {
  display: inline-block;
  text-indent: 0px;
  background-repeat: no-repeat;
  background-position: center center;
}

.input-error-wrapper {
  font-family: monospace;
  margin-top: 1em;
  position: relative;
}
.input-error-wrapper > .input-error-position {
  display: inline-block;
  position: relative;
}
.input-error-wrapper > .input-error-position > span {
  background-color: #FFEEEE;
  font-weight: bold;
  white-space: pre;
}
.input-error-wrapper > .input-error-position:after {
  content: "^";
  display: block;
  position: absolute;
  top: 100%;
  left: 0%;
}

fieldset {
  border: none;
  margin: 0px;
  padding: 0px;
}

/* ? */
.like-table {
  display: inline-table;
}
.like-table > div {
  display: table-row;
}
.like-table > div > div {
  display: table-cell;
  padding-right: 2em;
  vertical-align: middle;
}

.system-table > tbody > tr > td {
  vertical-align: baseline;
}


.anchor:target {
  /* from Wikipedia */
  background-color: rgba( 0,127,255,0.133 );
}

.css-profile math,
.css-profile mfrac,
.css-profile mfrac > mrow,
.css-profile mfrac > mrow + mrow,
.css-profile msub,
.css-profile msup,
.css-profile msub > mrow,
.css-profile msup > mrow,
.css-profile msub > mrow + mrow,
.css-profile msup > mrow + mrow,
.css-profile msub > mrow:after,
.css-profile msub > mrow:before,
.css-profile msup > mrow:after,
.css-profile msup > mrow:before,
.css-profile munder,
.css-profile msqrt:before,
.css-profile mroot,
.css-profile mroot > mrow,
.css-profile mroot > mrow + mrow,
.css-profile mrow,
.css-profile mfenced,
.css-profile mfenced > mrow,
.css-profile mfenced[open="("] > mrow:before,
.css-profile mfenced[close=")"] > mrow:after,
.css-profile mfenced[open="|"] > mrow:before,
.css-profile mfenced[close="|"] > mrow:after,
.css-profile mfenced[open="{"] > mrow:before,
.css-profile mfenced[close="}"] > mrow:after,
.css-profile mtable,
.css-profile menclose[notation="horizontalstrike"] {
  display: inline-block; /* ! */
  line-height: inherit;
  font-size: inherit;
  direction: inherit;
  white-space: inherit;
  text-align: inherit;
  text-decoration: none;
  vertical-align: baseline;
  background-image: none;
  content: normal;
  margin: 0px;
  padding: 0px;
  border: 0px none currentColor;
  width: auto;
  height: auto;
}


.math menclose,
.math mfenced,
.math mfrac,
.math mi,
.math mn,
.math mo,
.math mrow,
.math msqrt,
.math mroot,
.math msub,
.math msup,
.math munder {
  display: inline-block;
  vertical-align: baseline;
}

.math mtext {
  vertical-align: baseline;
}

/* TODO: It does not work on Android Browser, Konqueror, IE 8 - 11, Safari 5.1 */

.math mfrac {
  vertical-align: -50%;
  text-align: center;
  font-size: smaller;
}

.math mfrac > mrow {
  display: block;
  border-bottom: 1px solid;
}

.math mfrac > mrow + mrow {
  display: inline-block;
  border-bottom: none;
  vertical-align: top;
}

.math mfenced {
  padding-left: 0.5em;
  padding-right: 0.5em;
  position: relative;
}

.math mfenced:before,
.math mfenced:after {
  border: 2px solid;
  -webkit-border-radius: 50%;
  -moz-border-radius: 50%;
  border-radius: 50%;
  border-top-width: 0px;
  border-bottom-width: 0px;
  display: block;
  position: absolute;
  top: 0px;
  bottom: 0px;
  width: 21px;
}

.math mfenced:before {
  left: 0px;
  content: "";
  border-right-width: 0px;
}

.math mfenced:after {
  right: 0px;
  content: "";
  border-left-width: 0px;
}

/* to fix the :hover issue */
.math mfenced[open="("]:before {
  clip: rect(auto 9px auto auto);
}
.math mfenced[close=")"]:after {
  clip: rect(auto auto auto 14px);
}

.math mfenced[open="|"]:before,
.math mfenced[close="|"]:after {
  content: "";
  -webkit-border-radius: 0px;
  -moz-border-radius: 0px;
  border-radius: 0px;
  width: 0px;
  border-width: 1px;
}

.math mfenced[open="|"][close="|"] {
  padding-left: 0.1em;
  padding-right: 0.1em;
}

.math mfenced[open="|"]:before {
  border-left: none;
}

.math mfenced[close="|"]:after {
  border-right: none;
}

.math mfenced[open="{"]:before,
.math mfenced[close=" "]:after {
  content: "";
  -webkit-border-radius: 0px;
  -moz-border-radius: 0px;
  border-radius: 0px;
  width: 0px;
  border-width: 0px;
}

.math mtable {
  display: inline-table;
  vertical-align: middle;
  border-collapse: separate;
  border-spacing: 0px;
}

.math mtr {
  display: table-row;
}

.math mtd {
  display: table-cell;
  text-align: center;
  padding-left: 0.4em;
  padding-right: 0.4em;
  padding-top: 0.5ex;
  padding-bottom: 0.5ex;
}

.math mtable[columnalign="right"] > mtr > mtd {
  text-align: right;
}

/* (!) CSS 3 */
.math mtable[columnlines$="solid"] > mtr > mtd:last-child {
  border-left: 1px solid;
}

/* TODO: fix */
.math mtable[columnlines="none none none none solid none none none none"] > mtr > mtd:first-child + mtd + mtd + mtd + mtd + mtd,
.math mtable[columnlines="none none none solid none none none"] > mtr > mtd:first-child + mtd + mtd + mtd + mtd,
.math mtable[columnlines="none none solid none none"] > mtr > mtd:first-child + mtd + mtd + mtd,
.math mtable[columnlines="none solid none"] > mtr > mtd:first-child + mtd + mtd,
.math mtable[columnlines="solid"] > mtr > mtd:first-child + mtd {
  border-left: 1px solid;
}

.math mi {
  font-style: italic;
}

.math mo {
  padding-left: 0.15em;
  padding-right: 0.15em;
}

.math msub,
.math msup {
  white-space: nowrap;
}

.math msub > mrow,
.math msup > mrow {
  white-space: normal;
}

.math msub > mrow + mrow,
.math msup > mrow + mrow {
  padding-left: 0.2em;
  font-size: smaller;
}

.math msup > mrow:first-child {
  margin-top: 0.25em;
}

.math msup > mrow + mrow {
  vertical-align: top;
}

.math msub > mrow:first-child {
  margin-bottom: 0.25em;
}

.math msub > mrow + mrow {
  vertical-align: bottom;
}

/* Thanks to http://www.w3.org/TR/mathml-for-css/ */

.math mroot,
.math msqrt {
  white-space: nowrap;
}

.math msqrt > mrow {
  border-top: 1px solid;
}

.math msqrt:before {
  display: inline-block;
  content: "\221A";
}

.math mroot {
  position: relative;
}
.math mroot > mrow:first-child {
  margin-top: 0.4em;
  border-top: 1px solid;
}
.math mroot:before {
  display: inline-block;
  content: "\221A";
}
.math mroot > mrow:first-child + mrow {
  position: absolute;
  top: 0px;
  left: 0px;
  font-size: smaller;
}

.math mfenced[open="{"] {
  border: none;
  padding: 6px 0px 6px 12px;
}

.math mfenced[open="{"]:before {
  border-left: 2px solid;
  -webkit-border-top-left-radius: 100% 16px;
  -moz-border-radius-topleft: 100% 16px;
  border-top-left-radius: 100% 16px;
  content: "";
  position: absolute;
  top: 3px;
  bottom: auto;
  height: 25%;
  width: 8px;
  left: 5px;
}
.math mfenced[open="{"]:after {
  border-left: 2px solid;
  -webkit-border-bottom-left-radius: 100% 16px;
  -moz-border-radius-bottomleft: 100% 16px;
  border-bottom-left-radius: 100% 16px;
  content: "";
  position: absolute;
  bottom: 3px;
  top: auto;
  height: 25%;
  width: 8px;
  left: 5px;
}

/* TODO: fix */
.math mfenced[open="{"] > mrow:before,
.math mfenced[open="{"] > mtable:before {
  border-right: 2px solid;
  border-bottom: 2px solid transparent;
  -webkit-border-bottom-right-radius: 100% 16px;
  -moz-border-radius-bottomright: 100% 16px;
  border-bottom-right-radius: 100% 16px;
  content: "";
  position: absolute;
  top: 25%;
  bottom: auto;
  height: 25%;
  padding-bottom: 4px;
  width: 12px;
  left: -7px;
}

/* TODO: fix */
.math mfenced[open="{"] > mrow:after,
.math mfenced[open="{"] > mtable:after {
  border-right: 2px solid;
  border-top: 2px solid transparent;
  -webkit-border-top-right-radius: 100% 16px;
  -moz-border-radius-topright: 100% 16px;
  border-top-right-radius: 100% 16px;
  content: "";
  position: absolute;
  top: auto;
  bottom: 25%;
  height: 25%;
  padding-top: 4px;
  width: 12px;
  left: -7px;
}

.math mtable[columnspacing="0em"] > mtr > mtd {
  padding-left: 0em;
  padding-right: 0em;
}

.math mtable[rowspacing="0ex"] > mtr > mtd {
  padding-top: 0ex;
  padding-bottom: 0ex;
}

.math menclose {
  position: relative;
}

.math menclose[notation~="verticalstrike"]:after {
  content: "";
  position: absolute;
  top: 0px;
  bottom: 0px;
  left: 50%;
  border-right: 1px solid;
}
.math menclose[notation~="horizontalstrike"]:before {
  content: "";
  position: absolute;
  top: 50%;
  left: 0px;
  right: 0px;
  border-bottom: 1px solid;
}

/* new */
.math munder {
  display: inline-table;
  text-align: center;
}
.math munder > mrow {
  display: table-row;
}

.math mpadded[width="+0.8em"][lspace="+0.4em"] {
  display: inline-block;
  padding-left: 0.4em;
  padding-right: 0.4em;
}

.math menclose[notation~="circle"] {
  border: 1px solid;
  -webkit-border-radius: 50%;
  -moz-border-radius: 50%;
  border-radius: 50%;
}

.math mrow[mathbackground="#80FF80"] {
  background-color: #80FF80;
}
.math mtd[mathbackground="#80FF80"] {
  background-color: #80FF80;
}
.math mstyle[mathvariant="bold"] {
  display: inline-block;
  font-weight: bold;
}

/* someDetails */
.math mtable[columnlines="none none dashed none"] > mtr > mtd:first-child + mtd + mtd + mtd {
  border-left: 1px dashed;
}
.math mrow[mathcolor="#D64040"] {
  color: #D64040;
}
.math mrow[mathcolor="#4040D6"] {
  color: #4040D6;
}
.math mtd[mathcolor="#808080"] {
  color: #808080;
}

/* highlight */
.math mrow[mathbackground="#FAEBD7"] {
  background-color: #FAEBD7;
}
.math mtd[mathbackground="#FAEBD7"] {
  background-color: #FAEBD7;
}

@supports(-webkit-user-drag: element) { /* @supports is needed for Firefox, where -webkit-user-select is supported, but -webkit-user-drag is not */

  /* Chrome 49 needs this to make a MathML element draggable + Safari (https://bugs.webkit.org/show_bug.cgi?id=164280) */
  menclose[draggable="true"] {
    -webkit-user-drag: element;
    -webkit-user-select: none;
  }
  .altKey menclose[draggable="true"] {
    -webkit-user-drag: auto;
    -webkit-user-select: auto;
    cursor: initial;
  }

}

/* TODO: merge with .math - ? */
.no-columnspacing mtable[columnspacing="0em"] > mtr > mtd {
  padding-left: 0em;
  padding-right: 0em;
}
.no-mpadded mpadded[width="+0.8em"][lspace="+0.4em"] {
  padding-left: 0.4em;
  padding-right: 0.4em;
}
.no-columnlines mtable[columnlines$="solid"] > mtr > mtd:last-child {
  border-left: 1px solid;
}
.no-columnlines mtable[columnlines="none none none none solid none none none none"] > mtr > mtd:first-child + mtd + mtd + mtd + mtd + mtd,
.no-columnlines mtable[columnlines="none none none solid none none none"] > mtr > mtd:first-child + mtd + mtd + mtd + mtd,
.no-columnlines mtable[columnlines="none none solid none none"] > mtr > mtd:first-child + mtd + mtd + mtd,
.no-columnlines mtable[columnlines="none solid none"] > mtr > mtd:first-child + mtd + mtd,
.no-columnlines mtable[columnlines="solid"] > mtr > mtd:first-child + mtd {
  border-left: 1px solid;
}
.no-columnlines mtable[columnlines="none none dashed none"] > mtr > mtd:first-child + mtd + mtd + mtd {
  border-left: 1px dashed;
}
.no-rowspacing mtable[rowspacing="0ex"] > mtr > mtd {
  padding-top: 0ex;
  padding-bottom: 0ex;
}



/* from https://github.com/fred-wang/mathml.css/blob/master/mathml.css */

/* roots */
@supports(display: inline-flex) {
  .math mroot {
    position: static;
  }
  .math mroot > mrow:first-child + mrow {
    position: static;
  }
  .math mroot {
    display: inline-flex;
    align-items: baseline;
  }
  .math mroot > mrow:first-child + mrow {
    font-size: smaller;
    order: -1;
    align-self: flex-start;
    margin-right: -0.4em;
  }
}


details > summary::-webkit-details-marker {
  display: none;
}

details {
  display: block;
  margin-top: 3px;
  margin-bottom: 3px;
}

details > summary,
details > div {
  display: none;
}

details[open] > summary,
details[open] > div {
  display: block;
}

details > summary:hover,
details > summary:focus {
  text-shadow: 0px 0px 8px white;
  background: #DDDDDD;
}

details > summary:focus {
  box-shadow: 0px 0px 3px 3px #80B4F4;
}

details > summary:before {
  content: "\25BA";
  display: inline-block;
  text-align: center;
  width: 24px;
  color: black;
}

details[open] > summary:before {
  content: "\25BC";
  width: 24px;
  text-align: center;
}

details > summary {
  cursor: pointer;
  display: block;
  margin-bottom: 3px;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

.standard-dialog {
  z-index: 2;/* !? */
}

.standard-dialog > form > .close {
  position: absolute;
  right: 0.3em;
  top: 0.3em;
  font-weight: bold;
  width: 1.2em;
  height: 1.2em;
  display: block;
  text-align: center;
  line-height: 1.2em;
  cursor: pointer;
  padding: 0em;
  box-shadow: none;
  border: none;
  background: transparent;
}

.standard-dialog::backdrop {
  display: none;
}

.backdrop {
  position: fixed;
  background: rgba(0, 0, 0, 0.1);
  top: 0px;
  bottom: 0px;
  left: 0px;
  right: 0px;
}

.standard-dialog {
  position: absolute;
  width: auto;
  height: auto;
  padding: 1em;
  left: 0px;
  right: auto;
  margin: 0em;
  max-width: 500px;
  color: black;
  background: white;
  border: 1px solid #CCCCCC;
  border-radius: 4px;
  box-shadow: 0 0 3px #F88C00;
}

.standard-dialog > form {
  padding: 0em;
  margin: 0em;
}
.standard-dialog > form > .content {
  margin-top: 1em !important;
  margin-bottom: 1em !important;
  width: 100%;
}
.standard-dialog > form > .buttons {
  text-align: center;
}
@media screen and (max-width: 22em),
@media screen and (max-height: 200px) {
  .standard-dialog {
    border-radius: 0px;
  }
}

.a-input {
  display: inline-block;
  position: relative;
  background: white;
}

.a-input > div,
.a-input > input,
.a-input > textarea {
  letter-spacing: normal;
  word-spacing: normal;
  white-space: pre;
  word-wrap: normal;
  -o-tab-size: 4;
  -moz-tab-size: 4;
  tab-size: 4;
  font-family: monospace;
  background: transparent;
  position: relative;
}

.a-input > div {
  position: absolute;
  top: 0px;
  left: 0px;
  right: 0px;
  bottom: 0px;
  overflow: hidden;
}


.tooltip-arrow-wrapper {
  overflow: hidden;
  position: absolute;
  left: 0px;
  right: 0px;
  bottom: 100%;
  height: 1em;
}

.tooltip-arrow {
  position: absolute;
  left: 0.5em;
  bottom: -0.85em;
  width: 1em;
  height: 1em;
  transform: rotate(45deg);
}

.exclamation {
  display: inline-block;
  background: orange;
  color: white;
  font-weight: bold;
  padding: 0em 0.5em 0em 0.5em;
  border-radius: 4px;
}

/**********************************************/
/******** Дополнительные настойки  ************/
	/* кнопка очистить под матрицей */
#bigtable fieldset .clear-table-button{
	margin: auto 0.8em;
}
	/* кнопки - возведения в степень и умножить на число */
#bigtable .button-before-input .expression-button{
	width: 12em;
	margin-right: 6px;
	text-align: center;
	background-color: #F5F5F5;
	background-image: linear-gradient(to bottom, #FFFFFF, #E6E6E6);
	border: 1px solid #CCCCCC;
}		
/* поле чисел */
#bigtable .a-input .fraction-input{
	width: 3em;
	height: 1.5em;
	font-family: "Clear Sans", Arial, sans-serif;
	font-size: 0.85em;
	text-align: left;
	border: 1px solid #A7A7A7;			
}

	/* поле ручного ввода выражения */
#bigtable .a-input .expression-input {
	padding: 0 auto;
	margin-right: 0.5em;
	height: 1.7em;
	width: auto;
	font-family: "Clear Sans", Arial, sans-serif; 			
	font-size: 1em;
	font-weight: 200;
	text-align: right;
	border: 1px solid #CCCCCC;
}
/* поле с кнопкой для отображения десятичных знаков */
#bigtable .decimal-fraction-digits-controls{
	font-size: 90%;
}
	/* кнопки сложения и вычитания матриц */
#bigtable .bbox2 button{
	margin-bottom: 5px;
	background-image: none;
	background-color: #F88C00;			
	border:none;
	border-radius: 0;
	color: aliceblue;	
	transition: all 0.3s ease-in-out;
}

#bigtable .bbox2 button:hover, #bigtable .bbox2 button:focus{
	background-color: #777;	
}

#decfraccheckbox {
	margin-right: 0.5em;
	width: 1.1em;
	height: 1.1em;
	vertical-align:middle;		
}
/* список второго уровня */
.feature-content .list-box-2{
	padding-left: 2em;
}	

/*поле с решением*/
	.actline{
		display: block;
		height: auto;
		min-height: 6em;
		border-top: solid 3px #F88C00;
	}
#results-container li.actline:last-child{
	border-bottom: solid 3px #F88C00;
}
/* кнопка очистить на поле с решением */
	.actline .insert-buttons{
	margin-bottom: 1em;
	}		


/* checkbox - цветной дизайн движка*/
.checkbox {
	position: absolute;
	z-index: -1;
	opacity: 0;
	margin: 10px 0 0 20px;
}
.checkbox + label {
	position: relative;
	padding: 0 0 0 60px;
	cursor: pointer;
}
.checkbox + label:before {
	content: '';
	position: absolute;
	top: -4px;
	left: 0;
	width: 50px;
	height: 26px;
	border-radius: 13px;
	background: #CDD1DA;
	box-shadow: inset 0 2px 3px rgba(0,0,0,.2);
	transition: .2s;
}
.checkbox + label:after {
	content: '';
	position: absolute;
	top: -2px;
	left: 2px;
	width: 22px;
	height: 22px;
	border-radius: 10px;
	background: #FFF;
	box-shadow: 0 2px 5px rgba(0,0,0,.3);
	transition: .2s;
}
		/* включенно */
.checkbox:checked + label:before {
	background: #9FD468;
}
.checkbox:checked + label:after {
	left: 26px;
}
.checkbox:focus + label:before {
	box-shadow: inset 0 2px 3px rgba(0,0,0,.2), 0 0 0 3px rgba(255,255,0,.7);
}
.checkbox:focus + label:before {
	box-shadow: inset 0 2px 3px rgba(0,0,0,.2), 0 0 0 3px rgba(255,255,0,.7);
}	

/*******  для арабских языков *******/
	/** поле с решением для арабских языков **/
.lang_ar #bigtable .actline{
	text-align: right;
}
/*убираем фигурную стрелку*/
.lang_ar #bigtable .arrow{
	display: none;
}
/*кнопку очистить сдвгаем вправо*/
.lang_ar #bigtable .actline > .insert-buttons{
	float: left;
}
/*кнопку очистить все сдвгаем вправо*/
.lang_ar #bigtable .clear-all-button{
	float: left;
}

/*файл det - определитель матрицы*/
/* кнопки с вариантами решения */
#bigtable .det-buttons > div > button{
	width: 19em;
}
#bigtable .det-buttons span.button-before-input button.expression-button{
	width: 15em;
}		
/* поле для вода цифр */
#bigtable .det-buttons input[type="number"]{
	height: 1.6em;
	line-height: 1.6em;
	border: solid 1px #A1A1A1;
	font-size: 80%;
}
{
.  {
    vertical-align: middle;
    text-align: center;
    border: 0px;
    padding: 20px;
    margin: 0px;
}