如何更改活動時的折疊顏色？

Question

我想更改折疊標題顏色（背景和字體顏色）：

http://jsfiddle.net/KbQyx/

這個東西怎么做？

<div class="panel-group" id="accordion">
  <div class="panel panel-default">
    <div class="panel-heading">
      <h4 class="panel-title">
        <a  data-toggle="collapse" data-parent="#accordion" data-target="#collapseOne">
          Collapsible Group Item #1
        </a>
      </h4>
    </div>
    <div id="collapseOne" class="panel-collapse collapse in">
      <div class="panel-body">
        Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
      </div>
    </div>
  </div>

</div>

Answer 1

我假設data-accordion僅在<h4>標記中。

這是一個可行的解決方案： jsfiddle

.panel-default > .panel-heading > .panel-title.collapsed > a{
    color: #333;
    background-color: #f5f5f5;
    border-color: #ddd;
  }


 .panel-default > .panel-heading > .panel-title:not(.collapsed) > a{
    color: #fff;
    background-color: red;
    border-color: red;
   }