.container {
  position: absolute;
  top: 0;
  bottom: 1px;
  width: 100%;
  background-size: cover;
  background-image: url(https://p3.ssl.qhimg.com/t0121c4f255f95c5e79.jpg);
}
.container .headbar {
  background-color: rgba(0, 0, 0, 0.1);
}
.container .headbar .left-btn-list .btn-group:after,
.container .headbar .right-btn-list .btn-group:after {
  border-right: 1px solid rgba(255, 255, 255, 0.4);
}
.container .headbar .left-btn-list a.md-btn,
.container .headbar .right-btn-list a.md-btn {
  color: rgba(255, 255, 255, 0.8);
}
.container .headbar .left-btn-list a.md-btn:hover,
.container .headbar .right-btn-list a.md-btn:hover,
.container .headbar .left-btn-list a.md-btn.focus,
.container .headbar .right-btn-list a.md-btn.focus {
  background-color: rgba(255, 255, 255, 0.3);
  color: rgba(0, 0, 0, 0.4);
}
.container .main-area {
  background-color: none;
}
.container .main-area .editor {
  background-color: rgba(255, 255, 255, 0.1);
}
.container .main-area .editor .CodeMirror {
  color: #fff;
}
.container .main-area .editor .CodeMirror-gutters {
  border-right-color: rgba(255, 255, 255, 0.15);
  background: transparent;
}
.container .main-area .editor .CodeMirror-gutters .CodeMirror-guttermarker {
  color: black;
}
.container .main-area .editor .CodeMirror-gutters .CodeMirror-guttermarker-subtle {
  color: #999;
}
.container .main-area .editor .CodeMirror-linenumber {
  color: rgba(255, 255, 255, 0.6);
}
.container .main-area .editor .CodeMirror-cursor {
  border-left-color: #fff;
}
.container .main-area .editor .CodeMirror-focused .CodeMirror-selected {
  background: rgba(0, 0, 0, 0.3);
}
.container .main-area .preview {
  background-color: none;
  color: #fff;
}
.container .main-area .preview .md-text {
  font-size: 16px;
  line-height: 28px;
}
.container .bottom-bar {
  background-color: rgba(0, 0, 0, 0.1);
}
.container .bottom-bar .wordnum {
  color: #fff;
}
.container.dark {
  background-image: none;
  background-color: #262626;
}
.container.dark .main-area {
  color: #b4b4b4;
}
.container.dark .main-area .editor .CodeMirror {
  color: #d2d2d2;
}