.router-container {
    position: relative;
    width: 400px;
    height: 300px;
  }
  
  .router-body {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    height: 200px;
    background-color: #cccccc;
    border: 5px solid #000000;
    border-radius: 10px;
    overflow: hidden;
  }
  
  .router-front,
  .router-back,
  .router-top,
  .router-bottom,
  .router-left,
  .router-right {
    position: absolute;
    background-color: #ffffff;
  }
  
  .router-front {
    top: 40px;
    left: 25px;
    width: 250px;
    height: 135px;
  }
  
  .router-back {
    top: 40px;
    left: 25px;
    width: 250px;
    height: 135px;
    transform: rotateY(180deg);
  }
  
  .router-top {
    top: 0;
    left: 25px;
    width: 250px;
    height: 25px;
    border-bottom: 1px solid #000000;
  }
  
  .router-bottom {
    bottom: 0;
    left: 25px;
    width: 250px;
    height: 25px;
    border-top: 1px solid #000000;
  }
  
  .router-left {
    top: 40px;
    left: 0;
    width: 25px;
    height: 135px;
    border-right: 1px solid #000000;
  }
  
  .router-right {
    top: 40px;
    right: 0;
    width: 25px;
    height: 135px;
    border-left: 1px solid #000000;
  }
  
  .router-stand {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 50px;
    background-color: #cccccc;
    border-top: 5px solid #000000;
    border-radius: 50%;
    box-shadow: 0 0 10px #000000;
  }