.rowbox{height:530px;overflow:hidden;overflow-y:auto}.btnbox{padding-right:30px;margin-top:20px}.my-but{width:180px;height:80px;background:#fff;border:1px solid #ccc;border-radius:5px;margin-left:20px;margin-top:10px;font-size:16px;font-weight:700;color:#303030}