<ul class="list-group"> <li class="list-group-item"> <span class="badge">1</span> <span class="badge">2</span> <span class="badge">3</span> <span class="badge">4</span> <span class="badge">5</span> <span class="badge">6</span> <span class="badge">7</span> <span class="badge">8</span> <span class="badge">9</span> <span class="badge">10</span> </li> </ul> 给这段代码添加一个居中
.list-group { margin:0 auto; width:300px; }