如何使一個可摺疊的股利使用Twitter Bootsrap

Question

倒塌默認頁面加載我有我的網頁上的可摺疊的div collaplse之間切換時工作正常：

當網頁加載的問題是「Plcollapse 「Div默認打開。

我怎麼能收在div在頁面加載

<button type="button" class="btn btn-success" data-toggle="collapse" data-target="#plcollapse"> 
    Create list 
</button> 
<br/> 
<br/> 
<div id="plcollapse" class="collapse in"> 

    <form > 

     <fieldset> 
      <div class="control-group"> 
       <label for="Title">Title</label> 
       <input type="text" class="form-control" ng-model="plTitle" value="{{plTitle}}" id="titleInput" placeholder="Enter title"> 
      </div> 
      <div class="control-group"> 
       <label for="Description">Description</label> 
       <input type="text" class="form-control" ng-model="plDescription" value="{{plDescription}}" id="descriptionInput" placeholder="Enter description"> 
      </div> 
      <div class="control-group"> 
       <label>Add one or more ...</label> 
       <textarea id="videolist" ng-model="videolist" value="" style="width:40%"></textarea> 
       <a ng-click="arrangePlaylistVideos()">Click here to arrange videos</a> 
      </div> 
      <button type="submit" class="btn btn-success" ng-click="CreatePlaylist()">Submit</button> 
     </fieldset> 
    </form> 
</div> 

Answer 1

爭取你的div刪除 「中的」 類

<div id="plcollapse" class="collapse"> 
    ----- 
</div>