手风琴在 hover 上单击和预览打开？

Question

问题截图

我正在尝试在 hover 上预览手风琴的内容。 然后在单击时将其保持打开状态。 我包括了代码笔。 请帮忙。

https://codepen.io/sarah-omelia/pen/QWdYXMy

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<h2>Accordion with symbols</h2>
<p>In this example we have added a "plus" sign to each button. When the user clicks on the button, the "plus" sign is replaced with a "minus" sign.</p>

<div>
 <button id="acchead" class="accordion">Section 1</button>
  <div class="accordion-body">
    <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.</p>
  </div>
  
   <button id="acchead" class="accordion">Section 2</button>
  <div class="accordion-body">
    <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.</p>
  </div>
  
  <button id="acchead" class="accordion">Section 3</button>
  <div class="accordion-body">
    <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.</p>
  </div>
</div>

Answer 1

类似的东西？

 document.querySelectorAll('button.accordion').forEach(bt=> { bt.onclick = evt => bt.classList.toggle('active') })

 .accordion { background-color: #eee; color: #444; cursor: pointer; padding: 18px; width: 100%; text-align: left; outline: none; font-size: 15px; transition: 0.4s; padding: 1em; border: 1px solid blue; }.active, .accordion:hover { background-color: #ccc; }.accordion:after { content: '\002B'; color: #777; font-weight: bold; float: right; margin-left: 5px; }.accordion.active:after { content: '\2212'; }.accordion-body { border: 1px solid red; max-height: 0; transition: max-height 0.15s ease-out; overflow: hidden; }.active + div.accordion-body, .accordion:hover + div.accordion-body { max-height: 500px; transition: max-height 0.25s ease-in; }

 <h2>Accordion with symbols</h2> <p>In this example we have added a "plus" sign to each button. When the user clicks on the button, the "plus" sign is replaced with a "minus" sign.</p> <div> <button class="accordion">Section 1</button> <div class="accordion-body"> <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.</p> </div> <button class="accordion">Section 2</button> <div class="accordion-body"> <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.</p> </div> <button class="accordion">Section 3</button> <div class="accordion-body"> <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.</p> </div> </div>