CSS로 플립 상자를 만드는 방법은 무엇입니까?

CSS로 플립 상자를 생성하려면 코드는 다음과 같습니다 -

예시

<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
   body {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      margin:20px;
   }
   .flipCard {
      background-color: transparent;
      width: 300px;
      height: 300px;
      perspective: 1000px;
   }
   .innerCard {
      position: relative;
      width: 100%;
      height: 100%;
      text-align: center;
      transition: transform 0.6s;
      transform-style: preserve-3d;
      box-shadow: 0 4px 8px 0 rgba(0,0,0,0.2);
   }
   .flipCard:hover .innerCard {
      transform: rotateY(180deg);
   }
   .frontCard, .cardBack {
      position: absolute;
      width: 100%;
      height: 100%;
      -webkit-backface-visibility: hidden;
      backface-visibility: hidden;
   }
   .frontCard {
      background-color: rgb(124, 225, 243);
      color: black;
   }
   .cardBack {
      background-color: #3329b9;
      color: white;
      transform: rotateY(180deg);
      font-size: 18px;
      font-weight: bold;
   }
</style>
</head>
<body>
<h1>Flip box example</h1>
<div class="flipCard">
<div class="innerCard">
<div class="frontCard">
<h1>Front Text</h1>
</div>
<div class="cardBack">
<h1>Back Text</h1>
</div>
</div>
</div>
<h2>Hover over the above card to see the back side</h2>
</body>
</html>