message: Use a pointer cursor to indicate clickability
diff: -@import '~highlight.js/styles/pojoaque.css';
  +@import "~highlight.js/styles/pojoaque.css";
  // @import '~highlight.js/styles/androidstudio.css';
  // @import '~highlight.js/styles/monokai.css';
  #emphasize {
  width: 50em;
  // height: 50em;
  }
  +
  +.lineMarker {
  + cursor: pointer;
  +}
  