HTML+CSS 赌神洗牌网页动态特效

<!DOCTYPE html>
<html lang="zh">
 <head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta name="renderer" content="webkit"/>
  <meta name="force-rendering" content="webkit"/>
  <title></title>
 </head>
 <style>
 body{display:flex;justify-content:center;margin-top:300px;background-color:#fff;}
 .cards {
   display: grid;
   grid-template-areas: "cards";
 }
 .card {
   grid-area: cards;
   display: flex;
   width: 23vmin;
   aspect-ratio: 2.5/3.5;
   border-radius: 2.5vmin;
   border: 0.2vmin solid hsl(0 0% 0% / 0.25);
   background-color: #f0f0f0;
   background-image: url("data:image/svg+xml,%3Csvg width='180' height='180' viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M81.28 88H68.413l19.298 19.298L81.28 88zm2.107 0h13.226L90 107.838 83.387 88zm15.334 0h12.866l-19.298 19.298L98.72 88zm-32.927-2.207L73.586 78h32.827l.5.5 7.294 7.293L115.414 87l-24.707 24.707-.707.707L64.586 87l1.207-1.207zm2.62.207L74 80.414 79.586 86H68.414zm16 0L90 80.414 95.586 86H84.414zm16 0L106 80.414 111.586 86h-11.172zm-8-6h11.173L98 85.586 92.414 80zM82 85.586L87.586 80H76.414L82 85.586zM17.414 0L.707 16.707 0 17.414V0h17.414zM4.28 0L0 12.838V0h4.28zm10.306 0L2.288 12.298 6.388 0h8.198zM180 17.414L162.586 0H180v17.414zM165.414 0l12.298 12.298L173.612 0h-8.198zM180 12.838L175.72 0H180v12.838zM0 163h16.413l.5.5 7.294 7.293L25.414 172l-8 8H0v-17zm0 10h6.613l-2.334 7H0v-7zm14.586 7l7-7H8.72l-2.333 7h8.2zM0 165.414L5.586 171H0v-5.586zM10.414 171L16 165.414 21.586 171H10.414zm-8-6h11.172L8 170.586 2.414 165zM180 163h-16.413l-7.794 7.793-1.207 1.207 8 8H180v-17zm-14.586 17l-7-7h12.865l2.333 7h-8.2zM180 173h-6.613l2.334 7H180v-7zm-21.586-2l5.586-5.586 5.586 5.586h-11.172zM180 165.414L174.414 171H180v-5.586zm-8 5.172l5.586-5.586h-11.172l5.586 5.586zM152.933 25.653l1.414 1.414-33.94 33.942-1.416-1.416 33.943-33.94zm1.414 127.28l-1.414 1.414-33.942-33.94 1.416-1.416 33.94 33.943zm-127.28 1.414l-1.414-1.414 33.94-33.942 1.416 1.416-33.943 33.94zm-1.414-127.28l1.414-1.414 33.942 33.94-1.416 1.416-33.94-33.943zM0 85c2.21 0 4 1.79 4 4s-1.79 4-4 4v-8zm180 0c-2.21 0-4 1.79-4 4s1.79 4 4 4v-8zM94 0c0 2.21-1.79 4-4 4s-4-1.79-4-4h8zm0 180c0-2.21-1.79-4-4-4s-4 1.79-4 4h8z' fill='%23000000' fill-opacity='0.2' fill-rule='evenodd'/%3E%3C/svg%3E");
   background-size: 50%;
   will-change: transform;
 }
 </style>
 <body>
 <ul class="cards">
   <li class="card"></li><li class="card"></li><li class="card"></li><li class="card"></li><li class="card"></li><li class="card"></li><li class="card"></li><li class="card"></li><li class="card"></li><li class="card"></li><li class="card"></li><li class="card"></li>
 </ul>
 </body>  
 <script src="https://lf6-cdn-tos.bytecdntp.com/cdn/expire-1-y/gsap/3.9.1/gsap.js" type="application/javascript"></script>
 <script>
 let cards = document.querySelectorAll(".card");
 let cardsMidIndex = Math.floor(cards.length / 2);
 let yOffset = 60, scaleOffset = 0.02, duration = 0.8;
 let scaleDuration = duration / 3;
 let tl = gsap.timeline({ repeat: -1, yoyoEase: true });
 function driftIn() {
   return gsap.timeline().from(".cards", {
     yPercent: -yOffset / 3,
     duration,
     ease: "power2.inOut",
     yoyoEase: true
   });
 }
 function driftOut() {
   return gsap.timeline().to(".cards", {
     yPercent: yOffset / 3,
     duration,
     ease: "power2.inOut",
     yoyoEase: true
   });
 }
 function scaleCards() {
   return gsap
     .timeline().to(".card", {
       scale: (i) => {
         if (i <= cardsMidIndex) {
           return 1 - i * scaleOffset;
         } else {
           return 1 - (cards.length - 1 - i) * scaleOffset;
         }
       },
       delay: duration / 3,
       duration: scaleDuration,
       ease: "expo.inOut",
       yoyoEase: true
     }).to(".card", { scale: 1, duration: scaleDuration });
 }
 function shuffleCards() {
   return gsap
     .timeline()
     .set(".card", {
       y: (i) => -i * 0.5
     })
     .fromTo(".card", {
   rotate: 45,
         yPercent: -yOffset
       },{
         duration,
         rotate: 65,
         yPercent: yOffset,
         stagger: duration * 0.03,
         ease: "expo.inOut",
         yoyoEase: true
       });
 }
 function shuffleDeck() {
   tl.add(driftIn()).add(shuffleCards(), "<").add(scaleCards(), "<").add(driftOut(), "<55%");
 }
 shuffleDeck();
 </script>
</html>

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