/*
 * LaTeX Math in pure HTML and CSS -- No images whatsoever
 * v0.xa
 * by Jay and Han
 * Lesser GPL Licensed: http: //www.gnu.org/licenses/lgpl.html
 *
 * This file is automatically included by mathquill.js
 *
 */
@font-face {
    font-family: Symbola;
    src: url(//cdn1-school.ai-classes.com/staticimgs/componentscdn/mathquill/font/Symbola.eot);
    src: local("Symbola Regular"), local("Symbola"), url(//cdn1-school.ai-classes.com/staticimgs/componentscdn/mathquill/font/Symbola.woff2) format("woff2"), url(//cdn1-school.ai-classes.com/staticimgs/componentscdn/mathquill/font/Symbola.woff) format("woff"), url(//cdn1-school.ai-classes.com/staticimgs/componentscdn/mathquill/font/Symbola.ttf) format("truetype"), url(//cdn1-school.ai-classes.com/staticimgs/componentscdn/mathquill/font/Symbola.otf) format("opentype"), url(//cdn1-school.ai-classes.com/staticimgs/componentscdn/mathquill/font/Symbola.svg#Symbola) format("svg");
}
.mathquill-editable {
    display: -moz-inline-box;
    display: inline-block;
    white-space: pre-wrap;
}
.mathquill-editable .cursor {
    border-left: 1px solid black;
    margin-right: -1px;
    position: relative;
    z-index: 1;
    padding: 0;
    display: -moz-inline-box;
    display: inline-block;
}
.mathquill-editable .cursor.blink {
    visibility: hidden;
}
.mathquill-editable,
.mathquill-embedded-latex .mathquill-editable {
    border: 1px solid gray;
    padding: 2px;
}
.mathquill-embedded-latex .mathquill-editable {
    margin: 1px;
}
.mathquill-editable.hasCursor,
.mathquill-editable .hasCursor {
    -webkit-box-shadow: #68b4df 0 0 3px 2px;
    -moz-box-shadow: #68b4df 0 0 3px 2px;
    box-shadow: #68b4df 0 0 3px 2px;
}

.mathquill-editable .latex-command-input {
    color: inherit;
    font-family: "Courier New", monospace;
    border: 1px solid gray;
    padding-right: 1px;
    margin-right: 1px;
    margin-left: 2px;
}
.mathquill-editable .latex-command-input.empty {
    background: transparent;
}
.mathquill-editable .latex-command-input.hasCursor {
    border-color: ActiveBorder;
}
.mathquill-editable.empty:after,
.mathquill-textbox:after,
.mathquill-rendered-math .empty:after {
    visibility: hidden;
    content: 'c';
}
.mathquill-editable .cursor:only-child:after,
.mathquill-editable .textarea + .cursor:last-child:after {
    visibility: hidden;
    content: 'c';
}
.mathquill-textbox {
    overflow-x: auto;
    overflow-y: hidden;
}
.mathquill-rendered-math {
    font-variant: normal;
    font-weight: normal;
    font-style: normal;
    font-size: 115%;
    line-height: 1;
    display: -moz-inline-box;
    display: inline-block;
}
.mathquill-rendered-math .non-leaf,
.mathquill-rendered-math .scaled {
    display: -moz-inline-box;
    display: inline-block;
}
.mathquill-rendered-math var,
.mathquill-rendered-math .text,
.mathquill-rendered-math .nonSymbola {
    font-family: "Times New Roman", Symbola, serif;
    line-height: .9;
}
.mathquill-rendered-math * {
    font-size: inherit;
    line-height: inherit;
    margin: 0;
    padding: 0;
    border-color: black;
    -webkit-user-select: none;
    -moz-user-select: none;
    user-select: none;
    padding-top: 2px;
}
/*.mathquill-rendered-math .empty {
    background: #ccc;
}*/
.mathquill-rendered-math.empty {
    background: transparent;
}
.mathquill-rendered-math .text {
    font-size: 87%;
}
.mathquill-rendered-math .font {
    font: 1em "Times New Roman", Symbola, serif;
}
.mathquill-rendered-math .font * {
    font-family: inherit;
    font-style: inherit;
}
.mathquill-rendered-math b,
.mathquill-rendered-math b.font {
    font-weight: bolder;
}
.mathquill-rendered-math var,
.mathquill-rendered-math i,
.mathquill-rendered-math i.font {
    font-syle: italic;
}
.mathquill-rendered-math var.florin {
    margin: 0 -0.1em;
}
.mathquill-rendered-math big {
    font-size: 125%;
}
.mathquill-rendered-math .roman {
    font-style: normal;
}
.mathquill-rendered-math .sans-serif {
    font-family: sans-serif, Symbola, serif;
}
.mathquill-rendered-math .monospace {
    font-family: monospace, Symbola, serif;
}
.mathquill-rendered-math .overline {
    border-top: 1px solid black;
    margin-top: 1px;
    display: inline-block;
    width: inherit;
    text-align: center;
}
.mathquill-rendered-math .underline {
    border-bottom: 1px solid black;
    margin-bottom: 1px;
}
.mathquill-rendered-math .binary-operator {
    padding: 0 0.2em;
    display: -moz-inline-box;
    display: inline-block;
}
.mathquill-rendered-math .unary-operator {
    padding-left: 0.2em;
}
.mathquill-rendered-math sup,
.mathquill-rendered-math sub {
    position: relative;
    font-size: 90%;
}
.mathquill-rendered-math sup .binary-operator,
.mathquill-rendered-math sub .binary-operator {
    padding: 0 .1em;
}
.mathquill-rendered-math sup .unary-operator,
.mathquill-rendered-math sub .unary-operator {
    padding-left: .1em;
}
.mathquill-rendered-math sup.limit,
.mathquill-rendered-math sub.limit,
.mathquill-rendered-math sup.nthroot,
.mathquill-rendered-math sub.nthroot {
    font-size: 80%;
}
.mathquill-rendered-math sup .fraction,
.mathquill-rendered-math sub .fraction {
    font-size: 70%;
    vertical-align: -0.4em;
}
.mathquill-rendered-math sup .numerator,
.mathquill-rendered-math sub .numerator {
    padding-bottom: 0;
}
.mathquill-rendered-math sup .denominator,
.mathquill-rendered-math sub .denominator {
    padding-top: 0;
}
.mathquill-rendered-math sup {
    vertical-align: .8em;
}
.mathquill-rendered-math sup.limit,
.mathquill-rendered-math sup.nthroot {
    vertical-align: 0.8em;
}
.mathquill-rendered-math sup.nthroot {
    margin-right: -0.6em;
    margin-left: .2em;
    min-width: .5em;
}
.mathquill-rendered-math sub {
    vertical-align: -0.4em;
}
.mathquill-rendered-math sub.limit {
    vertical-align: -0.6em;
}
.mathquill-rendered-math .paren {
    padding: 0 .1em;
    vertical-align: bottom;
    -webkit-transform-origin: bottom center;
    -moz-transform-origin: bottom center;
    -ms-transform-origin: bottom center;
    -o-transform-origin: bottom center;
    transform-origin: bottom center;
}
.mathquill-rendered-math .array {
    vertical-align: middle;
    text-align: center;
}
.mathquill-rendered-math .array > span {
    display: block;
}
.mathquill-rendered-math .non-italicized-function {
    font-family: Symbola, "Times New Roman", serif;
    line-height: .9;
    font-style: normal;
    padding-right: .2em;
}
.mathquill-rendered-math .fraction {
    font-size: 90%;
    text-align: center;
    vertical-align: -0.5em;
    padding: 0 .2em;
    /*min-width: 30px!important;*/
}
.mathquill-rendered-math .fraction,
.mathquill-rendered-math x:-moz-any-link {
    display: -moz-groupbox;
}
.mathquill-rendered-math .fraction,
.mathquill-rendered-math x:-moz-any-link,
.mathquill-rendered-math x:default {
    display: inline-block;
}
.mathquill-rendered-math .numerator,
.mathquill-rendered-math .denominator {
    display: block;
}
.mathquill-rendered-math .numerator {
    padding: 0 0.1em;
    margin-bottom: -0.1em;
}
.mathquill-rendered-math .denominator {
    border-top: 1px solid;
    float: right;
    width: 100%;
    /*padding: .1em .1em 0 .1em;*/
    /* margin-right: -0.1em;
    margin-left: -0.1em; */
    white-space: nowrap;
}
.mathquill-rendered-math .sqrt-prefix {
    padding-top: 0;
    position: relative;
    top: .1em;
    vertical-align: top;
    -webkit-transform-origin: top;
    -moz-transform-origin: top;
    -ms-transform-origin: top;
    -o-transform-origin: top;
    transform-origin: top;
}
.mathquill-rendered-math .sqrt-stem {
    border-top: 1px solid;
    margin-top: 1px;
    padding-left: .15em;
    padding-right: .2em;
    margin-right: .1em;
}
.mathquill-rendered-math .vector-prefix {
    display: block;
    text-align: center;
    line-height: .25em;
    margin-bottom: -0.1em;
    font-size: 0.75em;
}
.mathquill-rendered-math .vector-stem {
    display: block;
}
.mathquill-rendered-math,
.mathquill-rendered-math .mathquill-editable {
    cursor: text;
    font-family: Symbola, "Times New Roman", serif;
}
.mathquill-rendered-math .selection,
.mathquill-editable .selection,
.mathquill-rendered-math .selection .non-leaf,
.mathquill-editable .selection .non-leaf,
.mathquill-rendered-math .selection .scaled,
.mathquill-editable .selection .scaled {
    background: #B4D5FE !important;
    background: Highlight !important;
    color: HighlightText;
    border-color: HighlightText;
}
.mathquill-rendered-math .selection .matrixed,
.mathquill-editable .selection .matrixed {
    background: #39F !important;
}
.mathquill-rendered-math .selection .matrixed-container,
.mathquill-editable .selection .matrixed-container {
    filter: progid:DXImageTransform.Microsoft.Chroma(color='#3399FF') !important;
}
.mathquill-rendered-math .selection.blur,
.mathquill-editable .selection.blur,
.mathquill-rendered-math .selection.blur .non-leaf,
.mathquill-editable .selection.blur .non-leaf,
.mathquill-rendered-math .selection.blur .scaled,
.mathquill-editable .selection.blur .scaled,
.mathquill-rendered-math .selection.blur .matrixed,
.mathquill-editable .selection.blur .matrixed {
    background: #D4D4D4 !important;
    color: black;
    border-color: black;
}
.mathquill-rendered-math .selection.blur .matrixed-container,
.mathquill-editable .selection.blur .matrixed-container {
    filter: progid:DXImageTransform.Microsoft.Chroma(color='#D4D4D4') !important;
}
.mathquill-editable .textarea,
.mathquill-rendered-math .textarea {
    position: relative;
    -webkit-user-select: text;
    -moz-user-select: text;
    user-select: text;
}
.mathquill-editable .textarea textarea,
.mathquill-rendered-math .textarea textarea,
.mathquill-editable .selectable,
.mathquill-rendered-math .selectable {
    -webkit-user-select: text;
    -moz-user-select: text;
    user-select: text;
    position: absolute;
    clip: rect(1em 1em 1em 1em);
}
.mathquill-rendered-math .matrixed {
    background: white;
    display: -moz-inline-box;
    display: inline-block;
}
.mathquill-rendered-math .matrixed-container {
    filter: progid:DXImageTransform.Microsoft.Chroma(color='white');
    margin-top: -0.1em;
}
.edui-btn-toolbar:last-child{
    background-position: -80px -20px;
}

/*
 * MathQuill v0.10.11
 * http://mathquill.com | maintainers@mathquill.com
 */
 @font-face {
  font-family: Symbola;
  src: url(//cdn1-school.ai-classes.com/staticimgs/componentscdn/mathquill/fonts/Symbola.eot);
  src: local("Symbola Regular"), local("Symbola"), url(//cdn1-school.ai-classes.com/staticimgs/componentscdn/mathquill/fonts/Symbola.woff2) format("woff2"), url(//cdn1-school.ai-classes.com/staticimgs/componentscdn/mathquill/fonts/Symbola.woff) format("woff"), url(//cdn1-school.ai-classes.com/staticimgs/componentscdn/mathquill/fonts/Symbola.ttf) format("truetype"), url(//cdn1-school.ai-classes.com/staticimgs/componentscdn/mathquill/fonts/Symbola.svg#Symbola) format("svg");
}
.mq-editable-field {
  display: -moz-inline-box;
  display: inline-block;
}
.mq-editable-field .mq-cursor {
  border-left: 1px solid black;
  margin-left: -1px;
  position: relative;
  z-index: 1;
  padding: 0;
  display: -moz-inline-box;
  display: inline-block;
}
.mq-editable-field .mq-cursor.mq-blink {
  visibility: hidden;
}
.mq-editable-field,
.mq-math-mode .mq-editable-field {
  border: 1px solid gray;
}
.mq-editable-field.mq-focused,
.mq-math-mode .mq-editable-field.mq-focused {
  -webkit-box-shadow: #8bd 0 0 1px 2px, inset #6ae 0 0 2px 0;
  -moz-box-shadow: #8bd 0 0 1px 2px, inset #6ae 0 0 2px 0;
  box-shadow: #8bd 0 0 1px 2px, inset #6ae 0 0 2px 0;
  border-color: #709AC0;
  border-radius: 1px;
}
.mq-math-mode .mq-editable-field {
  margin: 1px;
}
.mq-editable-field .mq-latex-command-input {
  color: inherit;
  font-family: "Courier New", monospace;
  border: 1px solid gray;
  padding-right: 1px;
  margin-right: 1px;
  margin-left: 2px;
}
.mq-editable-field .mq-latex-command-input.mq-empty {
  background: transparent;
}
.mq-editable-field .mq-latex-command-input.mq-hasCursor {
  border-color: ActiveBorder;
}
.mq-editable-field.mq-empty:after,
.mq-editable-field.mq-text-mode:after,
.mq-math-mode .mq-empty:after {
  visibility: hidden;
  content: 'c';
}
.mq-editable-field .mq-cursor:only-child:after,
.mq-editable-field .mq-textarea + .mq-cursor:last-child:after {
  visibility: hidden;
  content: 'c';
}
.mq-editable-field .mq-text-mode .mq-cursor:only-child:after {
  content: '';
}
.mq-editable-field.mq-text-mode {
  overflow-x: auto;
  overflow-y: hidden;
}
.mq-root-block,
.mq-math-mode .mq-root-block {
  display: -moz-inline-box;
  display: inline-block;
  width: 100%;
  padding: 2px;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
  /* white-space: nowrap; */
  overflow: hidden;
  vertical-align: middle;
}
.mq-math-mode {
  font-variant: normal;
  font-weight: normal;
  font-style: normal;
  font-size: 115%;
  line-height: 1;
  display: -moz-inline-box;
  display: inline-block;
}
.mq-math-mode .mq-non-leaf,
.mq-math-mode .mq-scaled {
  display: -moz-inline-box;
  display: inline-block;
}
.mq-math-mode var,
.mq-math-mode .mq-text-mode,
.mq-math-mode .mq-nonSymbola {
  font-family: "Times New Roman", Symbola, serif;
  line-height: 0.9;
}
.mq-math-mode * {
  font-size: inherit;
  line-height: inherit;
  margin: 0;
  padding: 0;
  border-color: black;
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
  box-sizing: border-box;
}
/* .mq-math-mode .mq-empty {
  background: #ccc;
} */
.mq-math-mode .mq-empty.mq-root-block {
  background: transparent;
}
.mq-math-mode.mq-empty {
  background: transparent;
}
.mq-math-mode .mq-text-mode {
  display: inline-block;
  white-space: pre;
}
.mq-math-mode .mq-text-mode.mq-hasCursor {
  box-shadow: inset darkgray 0 0.1em 0.2em;
  padding: 0 0.1em;
  margin: 0 -0.1em;
  min-width: 1ex;
}
.mq-math-mode .mq-font {
  font: 1em "Times New Roman", Symbola, serif;
}
.mq-math-mode .mq-font * {
  font-family: inherit;
  font-style: inherit;
}
.mq-math-mode b,
.mq-math-mode b.mq-font {
  font-weight: bolder;
}
.mq-math-mode var,
.mq-math-mode i,
.mq-math-mode i.mq-font {
  font-style: italic;
}
.mq-math-mode var.mq-f {
  margin-right: 0.2em;
  margin-left: 0.1em;
}
.mq-math-mode .mq-roman var.mq-f {
  margin: 0;
}
.mq-math-mode big {
  font-size: 200%;
}
.mq-math-mode .mq-int > big,
.mq-math-mode .mq-intsub > big {
  display: inline-block;
  -webkit-transform: scaleX(0.7);
  -moz-transform: scaleX(0.7);
  -ms-transform: scaleX(0.7);
  -o-transform: scaleX(0.7);
  transform: scaleX(0.7);
  vertical-align: -0.16em;
}
.mq-math-mode .mq-int > .mq-supsub,
.mq-math-mode .mq-intsub > .mq-supsub {
  font-size: 80%;
  vertical-align: -1.1em;
  padding-right: 0.2em;
}
.mq-math-mode .mq-int > .mq-supsub > .mq-sup > .mq-sup-inner,
.mq-math-mode .mq-intsub > .mq-supsub > .mq-sup > .mq-sup-inner {
  vertical-align: 1.3em;
}
.mq-math-mode .mq-int > .mq-supsub > .mq-sub,
.mq-math-mode .mq-intsub > .mq-supsub > .mq-sub {
  margin-left: -0.35em;
}
.mq-math-mode .mq-roman {
  font-style: normal;
}
.mq-math-mode .mq-sans-serif {
  font-family: sans-serif, Symbola, serif;
}
.mq-math-mode .mq-monospace {
  font-family: monospace, Symbola, serif;
}
.mq-math-mode .mq-mathbb .mq-original {
  display: none;
}
.mq-math-mode .mq-overline,
.mq-math-mode .mq-overarrow {
  border-top: 1px solid black;
  margin-top: 1px;
}
.mq-math-mode .mq-underline,
.mq-math-mode .mq-underarrow {
  border-bottom: 1px solid black;
  margin-bottom: 1px;
}
.mq-math-mode .mq-binary-operator {
  padding: 0 0.2em;
  display: -moz-inline-box;
  display: inline-block;
}
.mq-math-mode .mq-supsub {
  text-align: left;
  font-size: 90%;
  vertical-align: -0.5em;
}
.mq-math-mode .mq-supsub.mq-sup-only {
  vertical-align: 0.5em;
}
.mq-math-mode .mq-supsub.mq-sup-only .mq-sup {
  display: inline-block;
  vertical-align: text-bottom;
}
.mq-math-mode .mq-supsub .mq-sup {
  display: block;
}
.mq-math-mode .mq-supsub .mq-sub {
  display: block;
  float: left;
}
.mq-math-mode .mq-supsub .mq-binary-operator {
  padding: 0 0.1em;
}
.mq-math-mode .mq-supsub .mq-fraction {
  font-size: 70%;
}
.mq-math-mode .mq-nthroot {
  font-size: 80%;
  vertical-align: 0.8em;
  margin-right: -0.6em;
  margin-left: 0.2em;
  min-width: 0.5em;
}
.mq-math-mode .mq-paren {
  padding: 0 0.1em;
  vertical-align: top;
  -webkit-transform-origin: center 0.06em;
  -moz-transform-origin: center 0.06em;
  -ms-transform-origin: center 0.06em;
  -o-transform-origin: center 0.06em;
  transform-origin: center 0.06em;
}
.mq-math-mode .mq-paren.mq-ghost {
  color: silver;
}
.mq-math-mode .mq-paren + span {
  margin-top: 0.1em;
  margin-bottom: 0.1em;
}
.mq-math-mode .mq-array {
  vertical-align: middle;
  text-align: center;
}
.mq-math-mode .mq-array > span {
  display: block;
}
.mq-math-mode .mq-operator-name {
  font-family: Symbola, "Times New Roman", serif;
  line-height: 0.9;
  font-style: normal;
}
.mq-math-mode var.mq-operator-name.mq-first {
  padding-left: 0.2em;
}
.mq-math-mode var.mq-operator-name.mq-last,
.mq-math-mode .mq-supsub.mq-after-operator-name {
  padding-right: 0.2em;
}
.mq-math-mode .mq-fraction {
  font-size: 90%;
  text-align: center;
  vertical-align: -0.4em;
  padding: 0 0.2em;
}
.mq-math-mode .mq-fraction,
.mq-math-mode .mq-large-operator,
.mq-math-mode x:-moz-any-link {
  display: -moz-groupbox;
}
.mq-math-mode .mq-fraction,
.mq-math-mode .mq-large-operator,
.mq-math-mode x:-moz-any-link,
.mq-math-mode x:default {
  display: inline-block;
}
.mq-math-mode .mq-numerator,
.mq-math-mode .mq-denominator,
.mq-math-mode .mq-dot-recurring {
  display: block;
}
.mq-math-mode .mq-numerator {
  padding: 0 0.1em;
}
.mq-math-mode .mq-denominator {
  border-top: 1px solid;
  float: right;
  width: 100%;
  padding: 0.1em;
}
.mq-math-mode .mq-dot-recurring {
  text-align: center;
  height: 0.3em;
}
.mq-math-mode .mq-sqrt-prefix {
  padding-top: 0;
  position: relative;
  top: 0.1em;
  vertical-align: top;
  -webkit-transform-origin: top;
  -moz-transform-origin: top;
  -ms-transform-origin: top;
  -o-transform-origin: top;
  transform-origin: top;
}
.mq-math-mode .mq-sqrt-stem {
  border-top: 1px solid;
  margin-top: 1px;
  padding-left: 0.15em;
  padding-right: 0.2em;
  margin-right: 0.1em;
  padding-top: 1px;
}
.mq-math-mode .mq-diacritic-above {
  display: block;
  text-align: center;
  line-height: 0.4em;
}
.mq-math-mode .mq-diacritic-stem {
  display: block;
  text-align: center;
}
.mq-math-mode .mq-hat-prefix {
  display: block;
  text-align: center;
  line-height: 0.95em;
  margin-bottom: -0.7em;
  transform: scaleX(1.5);
  -moz-transform: scaleX(1.5);
  -o-transform: scaleX(1.5);
  -webkit-transform: scaleX(1.5);
}
.mq-math-mode .mq-hat-stem {
  display: block;
}
.mq-math-mode .mq-large-operator {
  vertical-align: -0.2em;
  padding: 0.2em;
  text-align: center;
}
.mq-math-mode .mq-large-operator .mq-from,
.mq-math-mode .mq-large-operator big,
.mq-math-mode .mq-large-operator .mq-to {
  display: block;
}
.mq-math-mode .mq-large-operator .mq-from,
.mq-math-mode .mq-large-operator .mq-to {
  font-size: 80%;
}
.mq-math-mode .mq-large-operator .mq-from {
  float: right;
  /* take out of normal flow to manipulate baseline */
  width: 100%;
}
.mq-math-mode,
.mq-math-mode .mq-editable-field {
  cursor: text;
  font-family: Symbola, "Times New Roman", serif;
}
.mq-math-mode .mq-overarc {
  border-top: 1px solid black;
  -webkit-border-top-right-radius: 50% 0.3em;
  -moz-border-radius-topright: 50% 0.3em;
  border-top-right-radius: 50% 0.3em;
  -webkit-border-top-left-radius: 50% 0.3em;
  -moz-border-radius-topleft: 50% 0.3em;
  border-top-left-radius: 50% 0.3em;
  margin-top: 1px;
  padding-top: 0.15em;
}
.mq-math-mode .mq-overarrow,
.mq-math-mode .mq-underarrow {
  text-align: center;
  position: relative;
}
.mq-math-mode .mq-overarrow:before,
.mq-math-mode .mq-underarrow:before,
.mq-math-mode .mq-overarrow:after,
.mq-math-mode .mq-underarrow:after {
  position: absolute;
  display: block;
  line-height: 1px;
  font-size: 0.8em;
  min-width: 0.8em;
}
.mq-math-mode .mq-overarrow.mq-arrow-left:before,
.mq-math-mode .mq-underarrow.mq-arrow-left:before,
.mq-math-mode .mq-overarrow.mq-arrow-leftright:before,
.mq-math-mode .mq-underarrow.mq-arrow-leftright:before {
  content: '\2190';
  text-align: left;
  left: -1px;
}
.mq-math-mode .mq-overarrow.mq-arrow-right:before,
.mq-math-mode .mq-underarrow.mq-arrow-right:before,
.mq-math-mode .mq-overarrow.mq-arrow-leftright:after,
.mq-math-mode .mq-underarrow.mq-arrow-leftright:after {
  content: '\2192';
  text-align: right;
  right: -1px;
}
.mq-math-mode .mq-overarrow.mq-empty .mq-inner:before,
.mq-math-mode .mq-underarrow.mq-empty .mq-inner:before {
  content: 'c';
  visibility: hidden;
}
.mq-math-mode .mq-overarrow:before,
.mq-math-mode .mq-overarrow:after {
  top: -1px;
}
.mq-math-mode .mq-underarrow:before,
.mq-math-mode .mq-underarrow:after {
  bottom: -1px;
}
.mq-math-mode .mq-harpoons {
  text-align: center;
  position: relative;
}
.mq-math-mode .mq-harpoons-numerator,
.mq-math-mode .mq-harpoons-denominator,
.mq-math-mode .mq-harpoons-harpoons {
  display: block;
}
.mq-math-mode .mq-harpoons-numerator,
.mq-math-mode .mq-harpoons-denominator {
  font-size: 70%;
}
.mq-math-mode .mq-harpoons-numerator {
  padding: 0 0.1em;
}
.mq-math-mode .mq-harpoons-denominator {
  float: right;
  width: 100%;
  padding: 0.1em;
}
@supports (-moz-appearance:meterbar) and (background-blend-mode:difference,normal) {
  .mq-math-mode .mq-overarrow:before,
  .mq-math-mode .mq-underarrow:before,
  .mq-math-mode .mq-overarrow:after,
  .mq-math-mode .mq-underarrow:after {
    line-height: 0;
  }
  .mq-math-mode .mq-overarrow:before,
  .mq-math-mode .mq-overarrow:after {
    top: -0.5px;
  }
  .mq-math-mode.mq-arrow-both {
    vertical-align: text-bottom;
  }
  .mq-math-mode.mq-arrow-both.mq-empty {
    min-height: 1.23em;
  }
  .mq-math-mode.mq-arrow-both.mq-empty:after {
    top: -0.34em;
  }
  .mq-math-mode.mq-arrow-both:before {
    -moz-transform: scaleX(-1);
    -o-transform: scaleX(-1);
    -webkit-transform: scaleX(-1);
    transform: scaleX(-1);
    filter: FlipH;
    -ms-filter: "FlipH";
  }
  .mq-math-mode.mq-arrow-both:after {
    display: block;
    position: relative;
    top: -2.3em;
    font-size: 0.5em;
    line-height: 0em;
    content: '\27A4';
    visibility: visible;
    text-align: right;
  }
}
.mq-math-mode .mq-matrix {
  vertical-align: middle;
  margin-left: 0.1em;
  margin-right: 0.1em;
}
.mq-math-mode .mq-matrix table {
  width: auto;
  border-bottom: none;
  border-spacing: 3px;
  border-collapse: separate;
}
.mq-math-mode .mq-matrix table.mq-rows-1 {
  /* better alignment when there's just one row */
  vertical-align: middle;
  margin-bottom: 1px;
}
.mq-math-mode .mq-matrix td {
  border: none;
  width: auto;
  /* defensive resets */
  padding: 0.1em 0.3em;
  vertical-align: baseline;
}
.mq-math-mode .mq-matrix-array table {
  border-collapse: collapse;
}
.mq-math-mode .mq-matrix-array tr:first-child td {
  border-bottom: 0.5px solid black;
}
.mq-math-mode .mq-matrix-array td + td {
  border-left: 0.5px solid black;
}
.mq-math-mode .mq-selection,
.mq-editable-field .mq-selection,
.mq-math-mode .mq-selection .mq-non-leaf,
.mq-editable-field .mq-selection .mq-non-leaf,
.mq-math-mode .mq-selection .mq-scaled,
.mq-editable-field .mq-selection .mq-scaled {
  background: #B4D5FE !important;
  background: Highlight !important;
  color: HighlightText;
  border-color: HighlightText;
}
.mq-math-mode .mq-selection .mq-matrixed,
.mq-editable-field .mq-selection .mq-matrixed {
  background: #39F !important;
}
.mq-math-mode .mq-selection .mq-matrixed-container,
.mq-editable-field .mq-selection .mq-matrixed-container {
  filter: progid:DXImageTransform.Microsoft.Chroma(color='#3399FF') !important;
}
.mq-math-mode .mq-selection.mq-blur,
.mq-editable-field .mq-selection.mq-blur,
.mq-math-mode .mq-selection.mq-blur .mq-non-leaf,
.mq-editable-field .mq-selection.mq-blur .mq-non-leaf,
.mq-math-mode .mq-selection.mq-blur .mq-scaled,
.mq-editable-field .mq-selection.mq-blur .mq-scaled,
.mq-math-mode .mq-selection.mq-blur .mq-matrixed,
.mq-editable-field .mq-selection.mq-blur .mq-matrixed {
  background: #D4D4D4 !important;
  color: black;
  border-color: black;
}
.mq-math-mode .mq-selection.mq-blur .mq-matrixed-container,
.mq-editable-field .mq-selection.mq-blur .mq-matrixed-container {
  filter: progid:DXImageTransform.Microsoft.Chroma(color='#D4D4D4') !important;
}
.mq-editable-field .mq-textarea,
.mq-math-mode .mq-textarea {
  vertical-align: top;
  position: relative;
  -webkit-user-select: text;
  -moz-user-select: text;
  user-select: text;
}
.mq-editable-field .mq-textarea *,
.mq-math-mode .mq-textarea *,
.mq-editable-field .mq-selectable,
.mq-math-mode .mq-selectable {
  -webkit-user-select: text;
  -moz-user-select: text;
  user-select: text;
  position: absolute;
  clip: rect(1em 1em 1em 1em);
  -webkit-transform: scale(0);
  -moz-transform: scale(0);
  -ms-transform: scale(0);
  -o-transform: scale(0);
  transform: scale(0);
  resize: none;
  width: 1px;
  height: 1px;
  box-sizing: content-box;
}
.mq-math-mode .mq-matrixed {
  background: white;
  display: -moz-inline-box;
  display: inline-block;
}
.mq-math-mode .mq-matrixed-container {
  filter: progid:DXImageTransform.Microsoft.Chroma(color='white');
  margin-top: -0.1em;
}

/*单独样式处理*/
.st_abcd img{
  position: relative;
  top: 10px;
}
.mathquill-embedded-latex:not(iframe){
  width: initial !important;
  height: initial !important;
}

.sqrt-prefix{
  display: inline !important;
}

/* 新题样式 */
.ques-li, .rpt-b, fieldset.ques-border {
  -moz-osx-font-smoothing: grayscale;
  -webkit-font-smoothing: antialiased;
}
.ques-li > h2 {
  font-size: 30px;
  margin-top: 20px;
}
table.table-view, table.table-view3,table.table-view4 {
  margin: 2px;
  border-collapse: collapse;
}
table.table-view th, table.table-view td, table.table-view3 th, table.table-view3 td,table.table-view4 th, table.table-view4 td {
  line-height: 30px;
  padding: 5px;
  border: 1px solid #000;
  vertical-align: middle;
  white-space: normal;
  word-break: break-all;
}
table.table-view {
  text-align: center;
}
table.table-view3 {
  text-align: left;
}
table.table-view3 tr:first-child td {
  text-align: center;
}
table.table-view4 {
  border: 1px solid #000;
}
table.table-view4 td {
  border: none;
}
table.article {
  border-collapse: collapse;
  text-align: left;
  margin: 2px;
  width: 98%;
}
table.article th, table.article td {
  line-height: 30px;
  white-space: normal;
  word-break: break-all;
  border-width: 0px;
  vertical-align: middle;
}
table.article2 {
  border-collapse: collapse;
  width: auto;
}
table.article2 th, table.article2 td {
  text-align: left;
  line-height: 30px;
  white-space: normal;
  word-break: break-all;
  vertical-align: middle;
  border: none;
  border-width: 0px;
}
.font-style-mi {
  font-style: italic;
}
.ques-flip-v {
  -ms-transform: scaleX(-1);
  -moz-transform: scaleX(-1);
  -webkit-transform: scaleX(-1);
  -o-transform: scaleX(-1);
  transform: scaleX(-1);
  filter: FlipH;
}
.ques-flip-h {
  -ms-transform: scaleY(-1);
  -moz-transform: scaleY(-1);
  -webkit-transform: scaleY(-1);
  -o-transform: scaleY(-1);
  transform: scaleY(-1);
  filter: FlipV;
}
.ques-bold {
  font-weight: 800;
}
.ques-del {
  text-decoration: line-through;
}
.ques-underline {
  min-height: 1em;
  display: inline;
  border-bottom: 1px solid #000;
  padding-bottom: 2px;
  min-width: 2em;
}
@-moz-document url-prefix() {
  .ques-underline {
    padding-bottom: 0px;
  }
}
.ques-under-p-line {
  border-bottom: 2px dotted #000;
  padding-bottom: 3px;
}
@-moz-document url-prefix() {
  .ques-under-p-line {
    padding-bottom: 1px;
  }
}
.ques-under-point {
  background: url("https://cdn71-school.ai-classes.com/question/common/point.png") no-repeat center bottom;
  padding-bottom: 4px;
}
.ques-under-point2 {
  font-size: 15px;
  background: url("https://cdn71-school.ai-classes.com/question/common/dot.png") repeat-x 0 18px;
  border-bottom: none;
  padding-bottom: 2px;
}
@-moz-document url-prefix() {
  .ques-under-point {
    padding-bottom: 1px;
  }
}
.ques-underwave {
  background: url("https://cdn71-school.ai-classes.com/question/common/wave.png") bottom repeat-x;
  padding-bottom: 4px;
}
@-moz-document url-prefix() {
  .ques-underwave {
    padding-bottom: 1px;
  }
}
.ques-align-left {
  display: block;
  text-align: left;
}
.ques-align-center {
  display: block;
  text-align: center;
}
.ques-align-right {
  display: block;
  text-align: right;
}
fieldset.ques-border {
  font-size: 14px;
}
.selected-option label.ques-s span > i, div.ques-s span > i {
  background-color: #deeeff;
}
.ques-part span, .ques-ac td span.ques-f-left{
  white-space: normal;
}