相关疑难解决方法(0)

Bootstrap v4删除了.btn-group-justified该类,请参阅https://github.com/twbs/bootstrap/issues/17631

如何证明按钮的合理性:

 <div class="btn-group btn-group-justified" role="group" aria-label="Justified button group">
   <a class="btn btn-primary" href="#" role="button">Left</a>
   <a class="btn btn-primary" href="#" role="button">Middle</a>
   <a class="btn btn-primary" href="#" role="button">Right</a>
 </div>