MCX

without lib

by Kumaresan S

HTML

<button class="accordion">Section 1</button>
<div class="panel">
  <p>Lorem ipsum...</p>
</div>

<button class="accordion">Section 2</button>
<div class="panel">
  <p>Lorem ipsum...</p>
</div>

<button class="accordion">Section 3</button>
<div class="panel">
  <p>Lorem ipsum...</p>
</div>

CSS

.accordion {
  background-color: #eee;
  color: #444;
  cursor: pointer;
  padding: 18px;
  width: 100%;
  text-align: left;
  border: none;
  outline: none;
  transition: 0.4s;
}


.active, .accordion:hover {
  background-color: #ccc;
}
.panel {
  padding: 0 18px;
  background-color: white;
  display: none;
  overflow: hidden;
}
.accordion:after {
    content: '>';
    font-size: 13px;
    color: #777;
    float: left;
    margin-right: 10px;
}

.active:after {
  content: "v";
}

JavaScript

var acc = document.getElementsByClassName("accordion");
var i;

for (i = 0; i < acc.length; i++) {
  acc[i].addEventListener("click", function() {
    /* Toggle between adding and removing the "active" class,
    to highlight the button that controls the panel */
    this.classList.toggle("active");

    /* Toggle between hiding and showing the active panel */
    var panel = this.nextElementSibling;
    if (panel.style.display === "block") {
      panel.style.display = "none";
    } else {
      panel.style.display = "block";
    }
  });
}