body{
    background-color: rgba(145, 64, 177, 0.4); /* 白色背景，50%透明度 */
}
#top{
    width:100%;
    height:60px;
    background-color: aqua;
    text-align: center;
    
}
#exhibit{
    display:flex; 
    flex-wrap: wrap; 
    width: 40%; 
    height:100%; 
    margin-top:0%; 
    margin-left:30%; 
}
#ele {
    display: flex; 
    flex-direction: column;   
    height: 15vh; 
    width: 30%; 
    margin-right: 10px; 
    margin-top: 30px;  
    border: 1px solid #dde3e9;
  }

  #ele .im{
    display: inline-block;
    height: 80%; 
    width: 100%;
  }
  #ele img{
    /* object-fit: contain; */
    width:100%; 
    height:100%;
  }
  #ele .di{
    height: 20%; 
    width: 100%;
  }

  #right{
    width: 20%; 
    margin-top: 5%; 
    margin-left: 70%; 
    position:fixed;
  }