.CodeMirror {
  line-height: 1em;
  font-family: monospace;
  position: relative;
  overflow: hidden;
}
.CodeMirror-scroll {
  overflow-x: auto;
  overflow-y: hidden;
  height: 300px;
  position: relative;
  outline: 0;
}
.CodeMirror-scrollbar {
  float: right;
  overflow-x: hidden;
  overflow-y: scroll;
  margin-left: -1px;
}
.CodeMirror-scrollbar-inner {
  width: 1px;
}
.CodeMirror-scrollbar.cm-sb-overlap {
  position: absolute;
  z-index: 1;
  float: none;
  right: 0;
  min-width: 12px;
}
.CodeMirror-scrollbar.cm-sb-nonoverlap {
  min-width: 12px;
}
.CodeMirror-scrollbar.cm-sb-ie7 {
  min-width: 18px;
}
.CodeMirror-gutter {
  position: absolute;
  left: 0;
  top: 0;
  z-index: 10;
  background-color: #f7f7f7;
  border-right: 1px solid #eee;
  min-width: 2em;
  height: 100%;
}
.CodeMirror-gutter-text {
  color: #aaa;
  text-align: right;
  padding: 0.4em 0.2em 0.4em 0.4em;
  white-space: pre !important;
}
.CodeMirror-lines {
  padding: 0.4em;
  white-space: pre;
  cursor: text;
}
.CodeMirror-lines * {
  pointer-events: none;
}
.CodeMirror pre {
  -moz-border-radius: 0;
  -webkit-border-radius: 0;
  -o-border-radius: 0;
  border-radius: 0;
  border-width: 0;
  margin: 0;
  padding: 0;
  background: transparent;
  font-family: inherit;
  font-size: inherit;
  padding: 0;
  margin: 0;
  white-space: pre;
  word-wrap: normal;
  line-height: inherit;
  color: inherit;
  overflow: hidden;
}
.CodeMirror-wrap pre {
  word-wrap: break-word;
  white-space: pre-wrap;
  word-break: normal;
}
.CodeMirror-wrap .CodeMirror-scroll {
  overflow-x: hidden;
}
.CodeMirror textarea {
  outline: none !important;
}
.CodeMirror pre.CodeMirror-cursor {
  z-index: 10;
  position: absolute;
  visibility: hidden;
  border-left: 1px solid black;
  border-right: 0;
  width: 0;
}
.cm-keymap-fat-cursor pre.CodeMirror-cursor {
  width: auto;
  border: 0;
  background: transparent;
  background: rgba(0, 200, 0, 0.4);
  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr=#6600c800,endColorstr=#4c00c800);
}
.cm-keymap-fat-cursor pre.CodeMirror-cursor:not(#nonsense_id) {
  filter: progid:DXImageTransform.Microsoft.gradient(enabled=false);
}
.CodeMirror-focused pre.CodeMirror-cursor {
  visibility: visible;
}
div.CodeMirror-selected {
  background: #d9d9d9;
}
.CodeMirror-focused div.CodeMirror-selected {
  background: #d7d4f0;
}
.CodeMirror-searching {
  background: #ffa;
  background: rgba(255, 255, 0, 0.4);
}
.cm-s-default span.cm-keyword {
  color: #708;
}
.cm-s-default span.cm-atom {
  color: #219;
}
.cm-s-default span.cm-number {
  color: #164;
}
.cm-s-default span.cm-def {
  color: #00f;
}
.cm-s-default span.cm-variable {
  color: black;
}
.cm-s-default span.cm-variable-2 {
  color: #05a;
}
.cm-s-default span.cm-variable-3 {
  color: #085;
}
.cm-s-default span.cm-property {
  color: black;
}
.cm-s-default span.cm-operator {
  color: black;
}
.cm-s-default span.cm-comment {
  color: #a50;
}
.cm-s-default span.cm-string {
  color: #a11;
}
.cm-s-default span.cm-string-2 {
  color: #f50;
}
.cm-s-default span.cm-meta {
  color: #555;
}
.cm-s-default span.cm-error {
  color: #f00;
}
.cm-s-default span.cm-qualifier {
  color: #555;
}
.cm-s-default span.cm-builtin {
  color: #30a;
}
.cm-s-default span.cm-bracket {
  color: #cc7;
}
.cm-s-default span.cm-tag {
  color: #170;
}
.cm-s-default span.cm-attribute {
  color: #00c;
}
.cm-s-default span.cm-header {
  color: blue;
}
.cm-s-default span.cm-quote {
  color: #090;
}
.cm-s-default span.cm-hr {
  color: #999;
}
.cm-s-default span.cm-link {
  color: #00c;
}
span.cm-header,
span.cm-strong {
  font-weight: bold;
}
span.cm-em {
  font-style: italic;
}
span.cm-emstrong {
  font-style: italic;
  font-weight: bold;
}
span.cm-link {
  text-decoration: underline;
}
div.CodeMirror span.CodeMirror-matchingbracket {
  color: #0f0;
}
div.CodeMirror span.CodeMirror-nonmatchingbracket {
  color: #f22;
}
.speech-bubble-green {
  position: relative;
  padding: 15px 30px;
  margin: 0;
  color: #000;
  background: #fcd455;
  background: -webkit-gradient(linear, 0 0, 0 100%, from(#f0be3e), to(#fcd455));
  background: -moz-linear-gradient(#f0be3e, #fcd455);
  background: -o-linear-gradient(#f0be3e, #fcd455);
  background: linear-gradient(#f0be3e, #fcd455);
  -webkit-border-top-left-radius: 25px 50px;
  -webkit-border-top-right-radius: 25px 50px;
  -webkit-border-bottom-right-radius: 25px 50px;
  -webkit-border-bottom-left-radius: 25px 50px;
  -moz-border-radius: 25px / 50px;
  border-radius: 25px / 50px;
}
.speech-bubble-green:before {
  content: "";
  position: absolute;
  bottom: -30px;
  left: 50px;
  border-width: 0 0 30px 50px;
  border-style: solid;
  border-color: transparent #fcd455;
  display: block;
  width: 0;
}
.speech-bubble-green:after {
  content: "";
  position: absolute;
  bottom: -30px;
  left: 50px;
  border-width: 0 0 30px 20px;
  border-style: solid;
  border-color: transparent #fff;
  display: block;
  width: 0;
}
.speech-bubble-red {
  position: relative;
  padding: 15px 30px;
  margin: 0;
  color: #000;
  background: #f59;
  background: -webkit-gradient(linear, 0 0, 0 100%, from(#fdd), to(#f59));
  background: -moz-linear-gradient(#fdd, #f59);
  background: -o-linear-gradient(#fdd, #f59);
  background: linear-gradient(#fdd, #f59);
  -webkit-border-top-left-radius: 25px 50px;
  -webkit-border-top-right-radius: 25px 50px;
  -webkit-border-bottom-right-radius: 25px 50px;
  -webkit-border-bottom-left-radius: 25px 50px;
  -moz-border-radius: 25px / 50px;
  border-radius: 25px / 50px;
}
.speech-bubble-red:before {
  content: "";
  position: absolute;
  bottom: -30px;
  left: 50px;
  border-width: 0 0 30px 50px;
  border-style: solid;
  border-color: transparent #f59;
  display: block;
  width: 0;
}
.speech-bubble-red:after {
  content: "";
  position: absolute;
  bottom: -30px;
  left: 50px;
  border-width: 0 0 30px 20px;
  border-style: solid;
  border-color: transparent #fff;
  display: block;
  width: 0;
}
body {
  font-family: Arial, sans-serif;
  line-height: 1.5;
  font-size: 12px;
}
iframe {
  width: 100%;
  float: left;
  height: 300px;
  border: 1px solid black;
  overflow: hidden;
}
.CodeMirror {
  float: left;
  width: 100%;
  height: 300px;
  border: 1px solid black;
  font-size: 12px;
}
.button {
  text-align: center;
  font-size: 10px;
  line-height: 1;
  font-weight: 700;
  padding: 4px 6px;
  position: relative;
  display: inline-block;
  text-decoration: none;
  background-color: #f5f5f5;
  background-image: -webkit-gradient(
    linear,
    left top,
    left bottom,
    from(#f5f5f5),
    to(#e7e7e7)
  );
  background-image: -webkit-linear-gradient(top, #f5f5f5, #e7e7e7);
  background-image: -moz-linear-gradient(top, #f5f5f5, #e7e7e7);
  background-image: -ms-linear-gradient(top, #f5f5f5, #e7e7e7);
  background-image: -o-linear-gradient(top, #f5f5f5, #e7e7e7);
  color: #888;
  border-radius: 3px;
  box-shadow: 0 2px 4px #aaa, inset 0 2px 4px #fff;
  cursor: pointer;
}
.button:hover {
  color: #555;
}
.button:active {
  color: #333;
  background: #f5f5f5;
  box-shadow: 0 1px 2px #aaa, inset 0 1px 2px #fff;
}
.errorLine {
  background: #e8f2ff !important;
}
.not-selectable {
  -moz-user-select: none;
  -ms-user-select: none;
  -khtml-user-select: none;
  -webkit-user-select: none;
  -o-user-select: none;
  user-select: none;
}
progress[value] {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  border: 0;
  width: 150px;
  height: 8px;
  color: green;
}
progress[value]::-webkit-progress-bar {
  background-color: #eee;
  border-radius: 2px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.25) inset;
}
progress[value]::-webkit-progress-value {
  background-image: -webkit-linear-gradient(
      -35deg,
      transparent 33%,
      rgba(0, 0, 0, 0.1) 33%,
      rgba(0, 0, 0, 0.1) 66%,
      transparent 66%
    ),
    -webkit-linear-gradient(top, rgba(255, 255, 255, 0.25), rgba(0, 0, 0, 0.25)),
    -webkit-linear-gradient(left, #3a3, #5c5);
  border-radius: 2px;
  background-size: 20px 10px, 100% 100%, 100% 100%;
}
progress[value]::-moz-progress-bar {
  background-image: -moz-linear-gradient(
      125deg,
      transparent 33%,
      rgba(0, 0, 0, 0.1) 33%,
      rgba(0, 0, 0, 0.1) 66%,
      transparent 66%
    ),
    -moz-linear-gradient(top, rgba(255, 255, 255, 0.25), rgba(0, 0, 0, 0.25)),
    -moz-linear-gradient(left, #3a3, #5c5);
  border-radius: 2px;
  background-size: 20px 10px, 100% 100%, 100% 100%;
}
#lesson-section {
  font-size: 12px;
  color: #777;
  font-weight: 700;
  cursor: pointer;
}
#lesson-number {
  font-size: 10px;
  line-height: 1;
  margin: 10px;
  color: #555;
}
#tutor {
  width: 100%;
  height: 200px;
}
#tutor-avatar {
  width: 200px;
  float: left;
  cursor: pointer;
}
#tutor-talk {
  width: 600px;
  float: left;
  cursor: pointer;
  font-size: 16px;
}
.tutor-code {
  font-family: monospace;
  cursor: pointer;
  font-size: 16px;
  font-weight: bold;
}
#code-errors {
  display: none;
  font-size: 14px;
  color: #f37;
}
#info-links {
  display: block;
  text-align: center;
  margin: 20px;
  font-size: 11px;
  color: #888;
  cursor: default;
}
.info-link {
  cursor: pointer;
}
.info-link:hover {
  color: #555;
}
.info-link:active {
  color: #222;
}
#simplemodal-overlay {
  background-color: #fff;
  opacity: 0.85;
}
#simplemodal-container {
  -webkit-box-sizing: content-box;
  border: 7px solid #aaa;
  border-radius: 4px;
  padding: 12px;
  background-color: #fff;
  opacity: 1;
  font-size: 12px;
  cursor: pointer;
}
#simplemodal-container h3 {
  font-size: 14px;
  font-weight: bold;
}
.simplemodal-closex {
  position: absolute;
  top: -6px;
  right: -6px;
  z-index: 3200;
  cursor: pointer;
  color: #999;
  border: 4px solid #aaa;
  border-radius: 30px;
  background: #fff;
  font-size: 14px;
  font-weight: bold;
  line-height: 1em;
  padding: 0 3px;
  cursor: pointer;
}
.simplemodal-closex:hover {
  color: #777;
}
.simplemodal-closex:active {
  color: #555;
}
#language-flags {
  margin-top: 50px;
}
.us-flag-holder {
  position: absolute;
  right: 100px;
  width: 22px;
  height: 13px;
}
.us-flag {
  display: block;
  width: 22px;
  height: 1px;
  background: #c00;
  box-shadow: 0 1px 0 white, 0 2px 0 #c00, 0 3px 0 white, 0 4px 0 #c00,
    0 5px 0 white, 0 6px 0 #c00, 0 7px 0 white, 0 8px 0 #c00, 0 9px 0 white,
    0 10px 0 #c00, 0 11px 0 white, 0 12px 0 #c00;
}
.us-flag:before {
  content: "";
  background: #117;
  display: block;
  width: 10px;
  height: 7px;
}
.de-flag-holder {
  position: absolute;
  right: 70px;
  width: 22px;
  height: 13px;
}
.de-flag {
  display: block;
  width: 22px;
  height: 5px;
  background: black;
  box-shadow: 0 4px 0 #c00, 0 8px 0 gold;
}