* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-box-sizing: border-box;
  -webkit-box-sizing: border-box;
  -webkit-touch-callout:none;/*系统默认菜单被禁用*/
  -webkit-user-select:none;/*webkit浏览器*/
  -khtml-user-select:none;/*早起浏览器*/
  -moz-user-select:none;/*火狐浏览器*/
  -ms-user-select:none;/*IE浏览器*/
  user-select:none;/*用户是否能够选中文本*/
}
svg{
  user-select:none;/*用户是否能够选中文本*/
}

html,
body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: url(https://css.ccement.com/tv_display/images/index_bg.jpg)
    no-repeat;
  background-size: 100% 100%;
  font-family: "Microsoft Yahei", Arial;
}

#main {
  width: 1920px;
  height: 1080px;
  position: absolute;
  transform-origin: 0 0;
  -webkit-transform-origin: 0 0;
}

.loading{
  display: none;
}