Bootstrap上如何浮動？

Question

技術過濾器不向左浮動.col-md-8 如何！？ 我的錯誤是什麼？

<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.2/js/bootstrap.min.js"></script> 
 
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.2/css/bootstrap.min.css" rel="stylesheet"/> 
 
<div class="row tech-list"> 
 
    \t <div class="title col-md-6"> 
 
     <h1>Rent Technics</h1> 
 
     </div> 
 

 
     <div class="breadcrumbs col-md-4 pull-right">... 
 
     </div> 
 

 
     <div class="col-md-8"> 
 
     <small style="float:left">3279 technics</small> 
 
     <div class="bt-group"> 
 
... 
 
     </div> 
 
    </div> 
 
    <div class="col-md-4"> 
 
     <div class="bt-group pull-right"> 
 
... 
 
     </div> 
 
    </div> 
 
    <div class="list-wrapper"> 
 
    <div class="col-md-8 "> 
 
    ... 
 
     </div> 
 
     </div> 
 
    </div> 
 

 
    ... 
 
    \t </div> 
 

 
    \t <div class="tech-filter col-md-4"> 
 
     <form action=""> 
 
     <div class="form-group"> 
 
      ... 
 
     </div> 
 
     </form> 
 
     
 
    </div> 
 
</div>

我無法拾取過濾塊

Answer 1

試加DIV row或使用更寬的列col-md-12爲tech-filter？

<div class="row"> 
    <div class="tech-filter col-md-4"> 
     <form action=""> 
      <div class="form-group"> 
      ... 
      </div> 
     </form> 
    </div> 
</div> 

- 或 -

<div class="tech-filter col-md-12"> 
</div>