.guidePopup {
    z-index: 5000 !important;
    top: 0;
    right: 0;
    left: 0;
    bottom: 0;
    transform: none;
    width: 100vw;
    height: 100vh;
    max-width: 100vw;
    margin: 0;
    overflow: hidden;
  }
  
  .tipsContainer {
    position: relative;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
  }
  
  .backBtn {
    position: absolute;
    left: 70px;
    top: 21px;
    font-size: 14px;
    line-height: 24px;
    padding: 0 14px;
    border-radius: 17px;
    border: 1px solid #ffffff;
    color: #fff;
    text-align: center;
    z-index: 1;
  
    &:active {
      opacity: 0.8;
    }
  }
  .backBtn.right {
    width: 60px;
    line-height: 24px;
    padding: 0 14px;
    right: 14px;
    top: 21px;
    left: auto;
  }
  
  .content {
    position: relative;
    width: 100%;
    height: 100%;
  }
  
  .box {
    position: fixed;
    box-shadow: rgba(33, 33, 33, 0.8) 0px 0px 0px 5000px;
    // transition: all 0.25s;
    transform: scale(1.2);
    border-radius: 8px;
  }
  
  .item {
    position: absolute;
    // width: 200px;
    z-index: 2000;
  
    .img {
      position: relative;
      width: 100%;

    }
  
    .iconHead {
      position: absolute;
      left: 45px;
      width: 18px;
      height: 52px;
  
      &.head2 {
        left: 0.2rem;
        top: 0.9rem;
      }
    }
  
    .btns {
      position: absolute;
      display: flex;
    //   width: 100%;
    //   padding: 0 12px;
  
      .btn {
        width: 73px;
        height: 23px;
        line-height: 13px;
        font-size: 9px;
        padding: 0;
      }
      .endBtn {
        margin-left: 5px;
      }
    }
    .studentbtn {
      background: url('./images/studentBtn.png');
      width:89px;
      height: 28px;
      background-size: 89px 28px;
      line-height: 28px;
      font-size: 9px;
      padding: 0;
      text-align:center;
      color:#fff;
    }
    .teacherBtn {
        background: url('./images/numbrBtn.png');
        background-size: 72px 25px;
        width: 72px;
        height: 25px;
        line-height: 25px;
        font-size: 9px;
        padding: 0;
        cursor: pointer;
        text-align: center;
        color: #fff;
        border:none;
        &:hover {
          opacity: .8;
        }
      }
    }
    .endBtn {
        width: 60px;
        height: 25px;
        background: url('./images/endBtn.png');
        background-size: 60px 25px;
        line-height: 25px;
        font-size: 9px;
        padding: 0;
        cursor: pointer;
        text-align: center;
        color: #fff;
        margin-right: 10px;
        &:hover {
          opacity: .8;
        }
      }
      .nextBtn {
        width: 72px;
        height: 25px;
        background: url('./images/nextBtn.png') no-repeat;
        background-size: 72px 25px;
        line-height: 25px;
        font-size: 9px;
        padding: 0;
        cursor: pointer;
        text-align: center;
        color: #fff;
  
        &:hover {
          opacity: .8;
        }
      }
      .studentNext {
        width: 74px;
        height: 25px;
        background: url('./images/studentBtn.png') no-repeat;
        background-size: 74px 25px;
        line-height: 25px;
        font-size: 9px;
        padding: 0;
        margin-right:10px;
        cursor: pointer;
        text-align: center;
        color: #fff;
  
        &:hover {
          opacity: .8;
        }
      }
  
  
  @keyframes myscale {
    0% {
      transform: scale(0.9);
    }
  
    50% {
      transform: scale(1);
    }
  
    100% {
      transform: scale(0.9);
    }
  }