body {
    font-family: Arial, Helvetica, sans-serif;
  }
  
  * {
      box-sizing: border-box;
  }
  
  /* Style inputs */
  input[type=text], select, textarea {
      width: 100%;
      padding: 12px;
      border: 1px solid #ccc;
      margin-top: 6px;
      margin-bottom: 16px;
      resize: vertical;
  }
  
  input[type=submit] {
      background-color: #4CAF50;
      color: white;
      padding: 12px 20px;
      border: none;
      cursor: pointer;
  }
  
  input[type=submit]:hover {
      background-color: #45a049;
  }
  
  /* Style the container/contact section */
  .container {
      border-radius: 5px;
      background-color: #f2f2f2;
      padding: 10px;
  }
  
  /* Create two columns that float next to eachother */
  .column {
      float: left;
      width: 50%;
      margin-top: 6px;
      padding: 20px;
  }
  
  /* Clear floats after the columns */
  .row:after {
      content: "";
      display: table;
      clear: both;
  }
  
  /* 响应式布局 */
  @media screen and (max-width: 600px) {
      .column, input[type=submit] {
          width: 100%;
          margin-top: 0;
      }
  }
  #allmap  img{
    width: 500px;
    height: 500px;
  }
  .bott {
    top: -140px;
  }
  .zci{
    top: -140px;

  }
  * {
    margin: 0;
    padding: 0;
  }
  
  a {
    text-decoration: none;
  }
  
  .container_l {
    position: relative;
    top: -140px;
    height: 400px;
    box-shadow: 0 0 5px green;
    overflow: hidden;
  }
  
  .container_l .wrap_l {
    position: absolute;
    width: 6400px;
    height: 400px;
    z-index: 1;
  }
  
  .container_l .wrap_l img {
    float: left;
    width: 600px;
    height: 400px;
  }
  
  .container_l .buttons_l {
    position: absolute;
    right: 5px;
    bottom: 40px;
    width: 150px;
    height: 10px;
    z-index: 2;
  }
  
  .container_l .buttons_l span {
    margin-left: 5px;
    display: inline-block;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: green;
    text-align: center;
    color: white;
    cursor: pointer;
  }
  
  .container_l .buttons_l span.on {
    background-color: red;
  }
  
  .container_l .arrow_l {
    position: absolute;
    top: 35%;
    color: green;
    padding: 0px 14px;
    border-radius: 50%;
    font-size: 50px;
    z-index: 2;
    display: none;
  }
  
  .container_l .arrow_l_left {
    left: 10px;
  }
  
  .container_l .arrow_l_right {
    right: 10px;
  }
  
  .container_l:hover .arrow_l {
    display: block;
  }
  
  .container_l .arrow_l:hover {
    background-color: rgba(0, 0, 0, 0.2);
  }