github.css

.cm-s-github {
  font-size: 1em;
  line-height: 1.5em;
  font-family: inconsolata, monospace;
  letter-spacing: 0.3px;
  word-spacing: 1px;
  background: #F8F8FF;
  color: #000000;
  padding-left: 10px;
  padding-right: 10px;
}
.cm-s-github .CodeMirror-lines {
  padding: 8px 0;
}
.cm-s-github .CodeMirror-gutters {
  box-shadow: 1px 0 2px 0 rgba(0, 0, 0, 0.5);
  -webkit-box-shadow: 1px 0 2px 0 rgba(0, 0, 0, 0.5);
  background-color: #F8F8FF;
  padding-right: 2px;
  z-index: 3;
  border: none;
}
.cm-s-github div.CodeMirror-cursor {
  border-left: 3px solid #000000;
}
.cm-s-github .CodeMirror-activeline-background {
  background: #00000012;
}
.cm-s-github .CodeMirror-selected {
  background: #BCD5FA;
}
.cm-s-github .cm-comment {
  font-style: italic;
  color: #999988;
}
.cm-s-github .cm-number {
  color: null;
}
.cm-s-github .cm-atom {
  color: null;
}
.cm-s-github .cm-string {
  color: #DD1144;
}
.cm-s-github .cm-variable-2 {
  color: #121289;
}
.cm-s-github .cm-property {
  color: null;
}
.cm-s-github .cm-keyword {
  color: null;
}
.cm-s-github .cm-operator {
  color: null;
}
.cm-s-github .CodeMirror-linenumber {
  color: italic;
}