<div style="padding:20px;"> <h2>按钮元素</h2> <a href="#" class="button info" role="button">链接按钮</a> <button type="button" class="button info">按钮</button> <input type="button" class="button info" value="Input 按钮"> <input type="submit" class="button info" value="Submit 按钮"> </div>