html跳动的心实现代码

<style>         .box{             width: 200px;             height: 400px;             position: relative;             margin: 30px auto;             transform: all 0.5s;

        }         @keyframes moves{             from{box-shadow: 0 0 0 transparent;}             30%{box-shadow: 0 0 50px rgb(236, 57, 57);}             60%{box-shadow: 0 0 80px rgb(241, 97, 97);}         }         .box>div{             animation: moves 1s infinite;             transition-delay: 1s;         }         .box_1{             width: 100px;             height: 100px;             border-radius: 50%;             background: red;             border-bottom: 0;

        }         div:nth-child(2){             position: absolute;             top: 0;             left:80px;         }         .box_2{             width: 100px;             height: 130px;             background: red;             transform: rotateZ(57deg);                     }         .box>div:nth-child(3){             position: absolute;             top: 2px;             right: 31px;             background-color: red;             border-radius: 50% 50% 0% 0;             box-shadow: 0 0 0 transparent !important;         }         .box>div:last-child{             position: absolute;             top: 4px;             left: 12px;             transform: rotateZ(122deg);             border-radius: 0 0% 50% 50%;         }         /* .box:hover>div{             box-shadow: 0 0 10px rgb(241, 97, 97);         } */     </style> </head> <body>     <div class=”box”>         <div class=”box_1″></div>         <div class=”box_1″></div>         <div class=”box_2″></div>         <div class=”box_2″></div>     </div> </body> </html>