.container {
  width: 800px;
  margin: 0 auto;
  padding: 20px;
}

.artplayer-app {
  width: 100%;
  height: 450px;
  margin: 0 auto 20px;
  background: #000;
}

.error-tip {
  font-size: 13px;
  padding: 5px 10px;
  margin-bottom: 20px;
  color: red;
  background: rgba(255, 0, 0, 0.1);
  border: 1px solid red;
  border-radius: 3px;
}

.CodeMirror {
  height: auto;
  border: 1px solid #ddd;
}

.CodeMirror pre {
  padding-left: 7px;
  line-height: 1.25;
}