.hearts {
    width: 5%;
    min-width: 100px;
    height: 25%;
    min-height: 250px;
    position: absolute;
    z-index: 10;
   }
   
   .heart {
    position: absolute;
    height: 20%;
    min-height: 25px;
    width: 20%;
    min-width: 25px;
    background-color: red;
    -webkit-mask-image: url('data:image/svg+xml;charset=UTF-8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path fill="currentColor" d="M462.3 62.6C407.5 15.9 326 24.3 275.7 76.2L256 96.5l-19.7-20.3C186.1 24.3 104.5 15.9 49.7 62.6c-62.8 53.6-66.1 149.8-9.9 207.9l193.5 199.8c12.5 12.9 32.8 12.9 45.3 0l193.5-199.8c56.3-58.1 53-154.3-9.8-207.9z"></path></svg>');
            mask-image: url('data:image/svg+xml;charset=UTF-8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path fill="currentColor" d="M462.3 62.6C407.5 15.9 326 24.3 275.7 76.2L256 96.5l-19.7-20.3C186.1 24.3 104.5 15.9 49.7 62.6c-62.8 53.6-66.1 149.8-9.9 207.9l193.5 199.8c12.5 12.9 32.8 12.9 45.3 0l193.5-199.8c56.3-58.1 53-154.3-9.8-207.9z"></path></svg>');
    -webkit-mask-repeat: no-repeat;
            mask-repeat: no-repeat;
    -webkit-mask-position: bottom;
            mask-position: bottom;
     opacity: 0;
     animation: floating-heart 10s infinite cubic-bezier(0.5, 0.5, 0.5, 0.5);
   }
   
   @keyframes floating-heart {
     0% {
       opacity: 0;
       bottom: 0%;
       left: 0%;
     }
     10% {
       opacity: 1;
       bottom: 20%;
       left: 70%;
     }
     20% {
       bottom: 40%;
       left: 10%;
     }
     30% {
       bottom: 60%;
       left: 50%;
     }
     40% {
       opacity: 1;
       bottom: 80%;
       left: 5%;
     }
     48% {
       opacity: 0;
       bottom: 100%;
       left: 60%;
     }
     100% {
       opacity: 0;
       bottom: 100%;
       left: 90%;
     }
   }
   
   .heart:nth-child(1) {  
     animation-delay: 1s;
   }
   
   .heart:nth-child(2) {
     animation-delay: 2.5s;
   }
   
   .heart:nth-child(3) {
     animation-delay: 3.5s;
   }
   
   .heart:nth-child(4) {
     animation-delay: 4.5s;
   }