lex
/
classroom-instruments


			
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  <title>老师端</title>
  <style>
    body {
      background: #f1f5ff;
      width: 100%;
    }

    .bgImg {
      width: 456Px;
      z-index: 100;
      display: block;
    }

    .btnImg {
      width: 288Px;
      position: absolute;
      left: 50%;
      margin-left: -144Px;
      bottom: 31Px;
      cursor: pointer;
      z-index: 100;
      display: block;
    }

    .imgWrap {
      width: 456Px;
      height: 522Px;
      position: absolute;
      top: 141Px;
      left: 50%;
      margin-left: -288Px;
      z-index: 100;
    }

    /* margin-top: 300px; */
    .textWrap {
      margin-top: 300Px;
      text-align: center;
      width: 500Px;
      position: absolute;
      top: 141Px;
      left: 50%;
      margin-left: -288Px;
    }

    .subMsg {
      margin-top: 32Px;
      font-size: 22Px;
      line-height: 30Px;
      color: #777;
    }

    .subBtn {
      width: 231Px;
      height: 62Px;
      background: #198CFE;
      border-radius: 18Px;
      border: none;
      font-size: 22Px;
      font-weight: 600;
      color: #FFFFFF;
      line-height: 30Px;
      cursor: pointer;
      margin-top: 32Px;
      list-style: none outside none;
      text-decoration: none;
    }
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