input{-webkit-appearance: none;}
.van-doc-demo-block__title {
    margin: 0;
    padding:16px 15px;
    color: #666;
    font-weight: normal;
    font-size: 16px;
    line-height: 16px;
}
.red{color: red;font-size: 16px;}
.green{color: green;font-size: 16px;}