Question

我正在尝试在我的WordPress网站的页面上创建一个Bootstrap（v4a）手风琴。

手风琴如下：

<div id="accordion" role="tablist" aria-multiselectable="true">
  <div class="card">
    <div class="card-header" role="tab" id="headingOne">
      <h5 class="mb-0">
        <a data-toggle="collapse" data-parent="#accordion" href="#collapseOne" aria-expanded="true" aria-controls="collapseOne">
          Save money on your annual electricity bills
        </a>
      </h5>
    </div>

    <div id="collapseOne" class="collapse show" role="tabpanel" aria-labelledby="headingOne">
      <div class="card-block">
        Save up to 90% on electricity bills for lighting – LED lights can save the average home or business a lot of money on annual costs.
      </div>
    </div>
  </div>
  <div class="card">
    <div class="card-header" role="tab" id="headingTwo">
      <h5 class="mb-0">
        <a class="collapsed" data-toggle="collapse" data-parent="#accordion" href="#collapseTwo" aria-expanded="false" aria-controls="collapseTwo">
          Replace light far less often than other lighting types
        </a>
      </h5>
    </div>
    <div id="collapseTwo" class="collapse" role="tabpanel" aria-labelledby="headingTwo">
      <div class="card-block">
        With lifetimes of over 50,000 hours, LED lights last up to 10 times longer than traditional lights – maintenance costs are dramatically reduced and no flickering lights!
      </div>
    </div>
  </div>
  <div class="card">
    <div class="card-header" role="tab" id="headingThree">
      <h5 class="mb-0">
        <a class="collapsed" data-toggle="collapse" data-parent="#accordion" href="#collapseThree" aria-expanded="false" aria-controls="collapseThree">
          Select from a range of options to set the lighting mood
        </a>
      </h5>
    </div>
    <div id="collapseThree" class="collapse" role="tabpanel" aria-labelledby="headingThree">
      <div class="card-block">
        LED lights have been proven to improve concentration levels in working environments.
      </div>
    </div>
  </div>
</div>

我有两个问题：

如何确保在页面加载时（默认情况下）关闭（折叠）所有元素？
如何在打开图标和关闭图标之间切换？

Answer 1

在第一个面板中，删除“show”类以确保所有元素都已关闭：

<div id="collapseOne" class="collapse" role="tabpanel" aria-labelledby="headingOne">

Bootstrap手风琴问题

1 个答案: