#panel {
  height: 30px;
  background: #3EAAF7;
  font-family: 'Hiragino Sans GB', 'Arial', 'Microsoft Yahei';
  overflow: hidden;
  -webkit-backface-visibility: hidden;
  position: relative;
  transition: -webkit-transform .7s ease;
  transition: transform .7s ease;
  z-index: 11;
  -webkit-user-select: none;
  -webkit-app-region: drag;
}