<h2>带边框按钮组</h2> <p>Add borders to create a bordered button group:</p> <button class="button">Button</button> <button class="button">Button</button> <button class="button">Button</button> <button class="button">Button</button> <p style="clear:both"><br>记住要清除浮动,否则下一个 p 元素的按钮也会显示在同一行。</p>