body {
 font-family: yahei, sans-serif;
 margin:20px;
 background-color: #f4f4f4;
}

    h1,h2,h3,h4,h5{
    text-align: center;
    color:#333;
    }
    
    .ggqd {
 max-width:100%;
 margin:0 auto;
 padding:20px;
 background: #fff;
 border-radius:5px;
 box-shadow:1px 5px rgba(0,0,0,0.1);
}
    
    input {
    width: 100%;
    height: 38px;
    color: white;
    border: none;
    border-radius: 5px;
    background-color: #006BFF;
    cursor: pointer;
    }
    
    p{
    text-align: center;
    
    }
    
        .ch {
            width:80px;
            padding: 2px;
            background: #222222;
            border-radius: 5px;
            color: white;
            box-shadow:1px 10px 10px rgba(0,0,0,0.2);
            }
            
         .qd{
         color:red;
         
         }
         
         hr{
         
         opacity: 0.3;
         }