Question

我有手风琴，我想：

点击箭头后

：

将面板的bg颜色从灰色更改为红色。将箭头的颜色从灰色更改为蓝色。

如果没有点击面板，颜色应该恢复正常颜色：灰色。

jsfiddle：https://jsfiddle.net/4x7y14wj/1/

的CSS：

.panel-heading .accordion-toggle:after {
    /* symbol for "opening" panels */
    font-family: 'Glyphicons Halflings';  /* essential for enabling glyphicon */
    content: "\e114";    /* adjust as needed, taken from bootstrap.css */
    float: right;        /* adjust as needed */
    color: grey;         /* adjust as needed */
}
.panel-heading .accordion-toggle.collapsed:after {
    /* symbol for "collapsed" panels */
    content: "\e080";    /* adjust as needed, taken from bootstrap.css */
}

HTML：

<div class="container">


  <div class="panel-group" id="accordion">
    <div class="panel panel-default">
      <div class="panel-heading">
        <h4 class="panel-title">
        <a class="accordion-toggle" data-toggle="collapse" data-parent="#accordion" href="#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 class="panel panel-default">
      <div class="panel-heading">
        <h4 class="panel-title">
        <a class="accordion-toggle" data-toggle="collapse" data-parent="#accordion" href="#collapseTwo">
          Collapsible Group Item #2
        </a>
      </h4>
      </div>
      <div id="collapseTwo" class="panel-collapse collapse">
        <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 class="panel panel-default">
      <div class="panel-heading">
        <h4 class="panel-title">
        <a class="accordion-toggle" data-toggle="collapse" data-parent="#accordion" href="#collapseThree">
          Collapsible Group Item #3
        </a>
      </h4>
      </div>
      <div id="collapseThree" class="panel-collapse collapse">
        <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>


</div>
<!-- end container -->

<!-- Latest compiled and minified JavaScript -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js"></script>

Answer 1

您可以添加以下css代码 - 纯粹的css方式来实现

.panel-heading
{
  padding:0px;
}
.panel-title a
{
  padding:10px; 
  display:block;
}
.panel-title a[aria-expanded='true']
{
  background-color: red;
  color:#fff;
}
.panel-title a[aria-expanded='true']::after
{
  color:blue;
}

希望它有效..

Answer 2

认为这就是您所需要的：https://jsfiddle.net/dennispreston/4x7y14wj/4/

修改

虽然这有效，但Chandra Shekhar的答案要好一百万倍！

<强> HTML

<div class="container"> <div class="panel-group" id="accordion"> <div class="panel panel-default"> <div class="panel-heading"> <h4 class="panel-title"> <a class="accordion-toggle" data-toggle="collapse" data-parent="#accordion" href="#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 class="panel panel-default"> <div class="panel-heading"> <h4 class="panel-title"> <a class="accordion-toggle collapsed" data-toggle="collapse" data-parent="#accordion" href="#collapseTwo"> Collapsible Group Item #2 </a> </h4> </div> <div id="collapseTwo" class="panel-collapse collapse"> <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 class="panel panel-default"> <div class="panel-heading"> <h4 class="panel-title"> <a id="toggle" class="accordion-toggle collapsed" data-toggle="collapse" data-parent="#accordion" href="#collapseThree"> Collapsible Group Item #3 </a> </h4> </div> <div id="collapseThree" class="panel-collapse collapse"> <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> </div>   <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js"></script>

<强> CSS

.panel-heading .accordion-toggle:after { /* symbol for "opening" panels */ font-family: 'Glyphicons Halflings'; /* essential for enabling glyphicon */ content: "\e114"; /* adjust as needed, taken from bootstrap.css */ float: right; /* adjust as needed */ color: blue; /* adjust as needed */ } .panel-heading .accordion-toggle.collapsed:after { /* symbol for "collapsed" panels */ content: "\e080"; /* adjust as needed, taken from bootstrap.css */ color: grey; } .panel-heading { background: red!important; } .panel-heading.grey { background: #f5f5f5!important; }

<强>的jQuery

如果面板标题的子元素具有.collapsed类，请将.grey类添加到面板标题中。如果没有，请将其删除。在加载时调用，并且在延迟时单击切换，以便在运行脚本之前添加.collapsed类。这有点乱，我匆匆忙忙做出来，所以任何有用的评论都会被收听，我会用更整洁的脚本编辑它。

$('.panel-heading:has(.collapsed)').addClass('grey'); $('.panel-heading:not(:has(.collapsed))').removeClass('grey'); $(".accordion-toggle").click(function() { setTimeout( function() { $('.panel-heading:has(.collapsed)').addClass('grey'); $('.panel-heading:not(:has(.collapsed))').removeClass('grey'); }, 10); });

带有箭头字形的Bootstrap手风琴点击后更改bg颜色和箭头颜色

2 个答案: