1回答

• 

  yang毛线

  2017-02-23 09:50:45

  <div class="form-group">

      <input type="email" class="form-control" placeholder="Enter email">

    </div>

    <div class="form-group">

        <input type="text" class="form control" placeholder="Enter username">

    </div>

  
  

  
  

  class="form control" 拼写错了，，，

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