html,body{height:100%;-webkituserselect none;-moz-user-select:none;-ms-user-select:none;userselectnone /* 标准语法 */
}body{display:flex;flex-direction:column;min-height:850px;min-width:1000px}.index-bg{width:100%;height:100%;padding-top:140px;background:url(../image/index_bg.png) no-repeat center center;background-size:100% 100%}.code{width:194px;height:194px;border:10px solid rgba(255,255,255,.20);border-radius:28px;box-sizing:content-box}.code>img{width:100%;border-radius:20px}