pulsar/static/editor.css

.editor {
  font: 18px Inconsolata, Monaco, Courier !important;
  position: relative;
  width: 100%;
  height: 100%;
  background: #333;
  color: white;
  cursor: default;

  overflow-y: scroll;

  -webkit-user-select: none;
}

.editor .content {
  display: -webkit-flexbox;
}

.editor .gutter {
  padding-left: 0.4em;
  padding-right: 0.8em;
  color: rgba(255, 255, 255, .3);
  text-align: right;
}

.editor .gutter.drop-shadow {
  -webkit-box-shadow: -2px 0px 10px 2px #222;  
}

.editor .lines {
  overflow-x: auto;
  width: -webkit-flex(1);

  position: relative;

}

.editor .line {
  position: relative;
  white-space: pre;
  margin: 0;
  padding: 0;
  z-index: 1;
}

@-webkit-keyframes blink {
  0% { opacity: .7; }
  49% { opacity: .7; }
  51% { opacity: 0; }
  100% { opacity: 0; }
}

.editor .cursor {
  position: absolute;
  border-left: 3px solid #9dff9d;
  opacity: 0.7;
}

.editor .cursor.idle {
  -webkit-animation: blink 0.6s;
  -webkit-animation-iteration-count: infinite;
}

.editor .hidden-input {
  position: absolute;
  z-index: -1;
  top: 0;
  left: 0;
  opacity: 0;
}

.editor .selection {
  position: absolute;
  background: white;
  opacity: .1;
}

.fold-placeholder {
  -webkit-box-sizing: border-box;
  position: relative;
  display: inline-block;
  vertical-align: text-bottom;
  -webkit-border-radius: 3px;
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .25);
  color: rgba(255, 255, 255, .95);
}

.fold-placeholder:hover {
  background: rgba(255, 255, 255, .2);
  border: 1px solid rgba(255, 255, 255, .3);
  color: white;
}

.fold-placeholder .ellipsis {
  position: relative;
  width: 100%;
  bottom: 40%;
  text-align: center;
}