.mini-alert{
    width:60%;
    min-width:60%;
    color: #4E4E4E;
    background-color: #fff;
    border-radius: 0.3rem;
    position: absolute;
    top:50%;
    left: 50%;
    transform: translate(-50%, -50%);
    -webkit-transform:translate(-50%, -50%);
    -moz-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    overflow: hidden;
    z-index: 10004;
    box-sizing: border-box;
  }
  .j-mask, #j-mask2, #j-mask-count {
    position: absolute;
    z-index: 999;
    background: rgba(0,0,0,0.7);
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    -webkit-transition: background .2s;
    transition: background .2s;
    cursor: pointer;
    display: none;
  }
  .alert-video{
    width: 60%;
    background: black;
    display: none;
  }
  .alert-content{
      width: 100%;
      height: 100%;
      margin-top: 20px;
  }
  .mini-alert video{
    width: 100%;
    height: 100%;
  }
  .alert-close{
      width: 30px;
      height: 30px;
      float: right;
  }
  .alert-close img{
    width: 100%;
    height: 100%;
  }