button{display:inline-block;line-height:1;white-space:nowrap;cursor:pointer;background:#fff;border:1px solid #dcdfe6;color:#606266;-webkit-appearance:none;text-align:center;box-sizing:border-box;outline:0;margin:0;transition:.1s;font-weight:500;padding:12px 20px;font-size:14px;border-radius:4px;margin-right:1em}button:disabled{background:#fff;color:#ddd;cursor:not-allowed}