How to create a "toggle switch" (on/off button) with CSS?

CSS Web Development Front End Technology

To create a toggle switch with CSS, the code is as follows −

Example

<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
   .switch {
      position: relative;
      display: inline-block;
      width: 60px;
      height: 34px;
   }
   .switch input {
      opacity: 0;
      width: 0;
      height: 0;
   }
   span {
      position: absolute;
      cursor: pointer;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background-color: #ccc;
      -webkit-transition: .4s;
      transition: .4s;
   }
   span:before {
      position: absolute;
      content: "";
      height: 26px;
      width: 26px;
      left: 4px;
      bottom: 4px;
      background-color: white;
      -webkit-transition: .4s;
      transition: .4s;
   }
   input:checked + span {
      background-color: rgb(85, 21, 138);
   }
   input:focus + span {
      box-shadow: 0 0 1px rgb(255, 77, 211);
   }
   input:checked + span:before {
      transform: translateX(26px);
   }
   span.round {
      border-radius: 34px;
   }
   span.round:before {
      border-radius: 50%;
   }
</style>
</head>
<body>
<h1>Toggle Switch Example</h1>
<label class="switch">
<input type="checkbox">
<span class="round"></span>
</label>
<label class="switch">
<input type="checkbox" checked>
<span class="round"></span>
</label>
</body>
</html>