radio插件

*,
*:after,
*:before {
  box-sizing: border-box;
}
 
.container {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  display: -webkit-box;
  display: flex;
  -webkit-box-pack: center;
          justify-content: center;
  -webkit-box-align: center;
          align-items: center;
  padding: 20px;
}
 
body {
  font-family: "Inter", sans-serif;
  color: #340417;
  font-size: calc(1em + 1.25vw);
  background-color: #f4e7ec;
}
 
form {
  display: -webkit-box;
  display: flex;
  flex-wrap: wrap;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
          flex-direction: column;
}
 
label {
  display: -webkit-box;
  display: flex;
  cursor: pointer;
  font-weight: 500;
}
label input {
  display: none;
}
label input:checked + span {
  background-color: #edd8e0;
}
label input:checked + span:before {
  box-shadow: inset 0 0 0 0.4375em #900c3f;
}
label span {
  display: -webkit-box;
  display: flex;
  -webkit-box-align: center;
          align-items: center;
  margin-bottom: 0.375em;
  padding: 0.375em 0.75em 0.375em 0.375em;
  border-radius: 99em;
  -webkit-transition: 0.25s ease;
  transition: 0.25s ease;
}
label span:hover {
  background-color: #edd8e0;
}
label span:before {
  display: -webkit-box;
  display: flex;
  flex-shrink: 0;
  content: "";
  background-color: #fff;
  width: 1.5em;
  height: 1.5em;
  border-radius: 50%;
  margin-right: 0.375em;
  -webkit-transition: 0.25s ease;
  transition: 0.25s ease;
  box-shadow: inset 0 0 0 0.125em #900c3f;
}

<!DOCTYPE html>
<html lang="en" >
<head>
  <meta charset="UTF-8">
  <title> Pill styled radio buttons | Fully scaleable </title>
  
<link rel="stylesheet" href="./style.css">
 
</head>
<body>
<!-- partial:index.partial.html -->
<div class="container">
    <form>
        <label>
            <input type="radio" name="radio" checked/>
            <span>HTML</span>
        </label>
        <label>
            <input type="radio" name="radio"/>
            <span>CSS</span>
        </label>
        <label>
            <input type="radio" name="radio"/>
            <span>Javascript</span>
        </label>
    </form>
</div>
<!-- partial -->
   
</body>
</html>