body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #fae1dd;
  }
  
  .container {
    position: relative;
  }
  
  .valentines {
    position: relative;
    top: 50px;
    cursor: pointer;
    animation: up 3s linear infinite;
  }
  
  @keyframes up {
    0%,
    100% {
      transform: translateY(0);
    }
    50% {
      transform: translateY(-30px);
    }
  }
  
  .envelope {
    position: relative;
    width: 300px;
    height: 200px;
    background-color: #f08080;
  }
  
  .envelope:before {
    background-color: #f08080;
    content: "";
    position: absolute;
    width: 212px;
    height: 212px;
    transform: rotate(45deg);
    top: -105px;
    left: 44px;
    border-radius: 30px 0 0 0;
  }
  
  .card {
    position: absolute;
    background-color: #eae2b7;
    width: 270px;
    height: 170px;
    top: 5px;
    left: 15px;
    box-shadow: -5px -5px 100px rgba(0, 0, 0, 0.4);
    transition: top 0.5s;
  }
  
  .card:before {
    content: "";
    position: absolute;
    border: 3px solid #003049;
    width: 240px;
    height: 140px;
    left: 12px;
    top: 12px;
  }
  
  .text {
    position: absolute;
    font-family: "Snell Roundhand", cursive;
    font-size: 28px;
    text-align: center;
    line-height: 25px;
    top: 25px;
    left: 45px;
    color: #003049;
  }
  
  .heart {
    background-color: #d62828;
    display: inline-block;
    height: 30px;
    margin: 0 10px;
    position: relative;
    top: 110px;
    left: 105px;
    transform: rotate(-45deg);
    width: 30px;
  }
  
  .heart:before,
  .heart:after {
    content: "";
    background-color: #d62828;
    border-radius: 50%;
    height: 30px;
    position: absolute;
    width: 30px;
  }
  
  .heart:before {
    top: -15px;
    left: 0;
  }
  
  .heart:after {
    left: 15px;
    top: 0;
  }
  
  .hearts {
    position: absolute;
  }
  
  .hearts > * {
    background-color: red;
    display: inline-block;
    height: 10px;
    margin: 0 10px;
    position: relative;
    transform: rotate(-45deg);
    width: 10px;
    top: 50px;
  }
  
  .hearts > *:before,
  .hearts > *:after {
    content: "";
    background-color: red;
    border-radius: 50%;
    height: 10px;
    position: absolute;
    width: 10px;
  }
  
  .hearts > *:before {
    top: -5px;
    left: 0;
  }
  
  .hearts > *:after {
    left: 5px;
    top: 0;
  }
  
  .one {
    left: 10px;
    animation: heart 1s ease-out infinite;
  }
  
  .two {
    left: 30px;
    animation: heart 2s ease-out infinite;
  }
  
  .three {
    left: 50px;
    animation: heart 1.5s ease-out infinite;
  }
  
  .four {
    left: 70px;
    animation: heart 2.3s ease-out infinite;
  }
  
  .five {
    left: 90px;
    animation: heart 1.7s ease-out infinite;
  }
  
  @keyframes heart {
    0% {
      transform: translateY(0) rotate(-45deg) scale(0.3);
      opacity: 1;
    }
    100% {
      transform: translateY(-150px) rotate(-45deg) scale(1.3);
      opacity: 0.5;
    }
  }
  
  .front {
    position: absolute;
    border-right: 180px solid #f4978e;
    border-top: 95px solid transparent;
    border-bottom: 100px solid transparent;
    left: 120px;
    top: 5px;
    width: 0;
    height: 0;
    z-index: 10;
  }
  
  .front:before {
    position: absolute;
    content: "";
    border-left: 300px solid #f8ad9d;
    border-top: 195px solid transparent;
    left: -120px;
    top: -95px;
    width: 0;
    height: 0;
  }
  
  .shadow {
    position: absolute;
    width: 330px;
    height: 25px;
    border-radius: 50%;
    background-color: rgba(0, 0, 0, 0.3);
    top: 265px;
    left: -15px;
    animation: scale 3s linear infinite;
    z-index: -1;
  }
  
  @keyframes scale {
    0%,
    100% {
      transform: scaleX(1);
    }
    50% {
      transform: scaleX(0.85);
    }
  }
  
  @media (hover: hover) {
    .container:hover .card {
      top: -90px;
    }
  }

  #trigger:checked ~ .container .card {
    top: -90px;
  }