.keyboard{background:#f0f2f5;-webkit-transition:all .5s;transition:all .5s;position:fixed;left:0;bottom:0;width:100%;text-align:center;z-index:100}.keyboard .van-col--8{height:80px;line-height:80px;background:#fff;font-size:20px;color:#4c677f;border-bottom:1px solid #e6e6e6;border-right:1px solid #e6e6e6}.keyboard .van-col--8:active,.keyboard .van-col--8:focus{background:#1990ff;color:#fff;-webkit-transition:all .2s;transition:all .2s}