html, body {
    background-repeat: no-repeat;
    background-size: contain;
    background-position: center center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-color: #3f3456;
    background-size: fill;
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
  }
  
  .dog {
    position: absolute;
    top: 52%;
    width: 50vmin;
    height: 40vmin;
    z-index: 0;
  }
  
  .heart {
    position: absolute;
    width: 6%;
    height: 7%;
    background-color: #e64356;
    border-bottom-right-radius: 23%;
    opacity: 0;
    -webkit-animation-fill-mode: both;
            animation-fill-mode: both;
  }
  @-webkit-keyframes heart-beat {
    0% {
      transform: scale(0.75) rotate(35deg);
      opacity: 1;
    }
    5%, 15%, 25% {
      transform: scale(1) rotate(35deg);
    }
    10%, 20% {
      transform: scale(0.75) rotate(35deg);
    }
    70% {
      opacity: 1;
    }
    100% {
      transform: rotate(35deg) translateY(-10px) translateX(-10px);
      opacity: 0;
    }
  }
  @keyframes heart-beat {
    0% {
      transform: scale(0.75) rotate(35deg);
      opacity: 1;
    }
    5%, 15%, 25% {
      transform: scale(1) rotate(35deg);
    }
    10%, 20% {
      transform: scale(0.75) rotate(35deg);
    }
    70% {
      opacity: 1;
    }
    100% {
      transform: rotate(35deg) translateY(-10px) translateX(-10px);
      opacity: 0;
    }
  }
  .heart--1 {
    top: -25%;
    left: 15%;
    -webkit-animation: heart-beat 2s ease-out infinite 1.5s;
            animation: heart-beat 2s ease-out infinite 1.5s;
  }
  .heart--2 {
    top: -36%;
    left: 7%;
    -webkit-animation: heart-beat 2s ease-out infinite 1s;
            animation: heart-beat 2s ease-out infinite 1s;
  }
  .heart--3 {
    top: -48%;
    left: 14%;
    -webkit-animation: heart-beat 2s ease-out infinite 0.5s;
            animation: heart-beat 2s ease-out infinite 0.5s;
  }
  .heart--4 {
    top: -53%;
    left: -3%;
    -webkit-animation: heart-beat 2s ease-out infinite;
            animation: heart-beat 2s ease-out infinite;
  }
  
  .heart:before,
  .heart:after {
    position: absolute;
    width: 100%;
    height: 100%;
    content: "";
    border-radius: 50%;
    background-color: #e64356;
  }
  
  .heart:after {
    bottom: 0px;
    left: -53%;
  }
  
  .heart:before {
    top: -53%;
    right: 0px;
    transform: rotate(45deg);
  }
  
  .body {
    position: absolute;
    width: 100%;
    height: 50%;
    background-color: #f79e38;
    border-top-right-radius: 17% 40%;
    border-top-left-radius: 25%;
    border-bottom-right-radius: 5% 13%;
    border-bottom-left-radius: 30% 40%;
    z-index: 3;
  }
  
  .cheast {
    position: absolute;
    width: 45%;
    height: 100%;
    background-color: #fff;
    border-top-right-radius: 17% 40%;
    border-top-left-radius: 25%;
    border-bottom-right-radius: 40% 40%;
    border-bottom-left-radius: 40% 40%;
    z-index: 4;
  }
  .cheast:after, .cheast:before {
    position: absolute;
    content: "";
    width: 7%;
    height: 55%;
    border-radius: 39%;
    background-color: #fff;
  }
  .cheast:after {
    top: 36%;
    left: 3%;
    transform: rotate(-1deg);
  }
  .cheast:before {
    top: 19%;
    left: -4%;
  }
  
  .head {
    position: absolute;
    width: 100%;
    height: 100%;
    z-index: 4;
    -webkit-animation: dog-head 1s ease-out infinite;
            animation: dog-head 1s ease-out infinite;
    -webkit-animation-fill-mode: both;
            animation-fill-mode: both;
    -webkit-animation-direction: alternate;
            animation-direction: alternate;
  }
  @-webkit-keyframes dog-head {
    to {
      transform: translateX(-3px) rotate(3deg);
    }
  }
  @keyframes dog-head {
    to {
      transform: translateX(-3px) rotate(3deg);
    }
  }
  
  .tail {
    position: absolute;
    top: -14%;
    left: 92%;
    width: 10%;
    height: 45%;
    background-color: #f79e38;
    border-top-right-radius: 30% 30%;
    border-top-left-radius: 40% 30%;
    border-bottom-right-radius: 30% 40%;
    border-bottom-left-radius: 40% 40%;
    z-index: 2;
    transform: rotate(20deg);
    -webkit-animation: dog-tail 170ms ease-out infinite;
            animation: dog-tail 170ms ease-out infinite;
  }
  @-webkit-keyframes dog-tail {
    from, to {
      transform: rotate(10deg);
    }
    50%, 60% {
      transform: rotate(70deg) translateX(10px) translateY(2px);
    }
  }
  @keyframes dog-tail {
    from, to {
      transform: rotate(10deg);
    }
    50%, 60% {
      transform: rotate(70deg) translateX(10px) translateY(2px);
    }
  }
  .tail:before {
    position: absolute;
    content: "";
    top: -8%;
    left: -7%;
    width: 100%;
    height: 50%;
    background-color: #f79e38;
    border-radius: 50%;
    -webkit-animation: dog-tail-before 160ms ease-out infinite;
            animation: dog-tail-before 160ms ease-out infinite;
  }
  @-webkit-keyframes dog-tail-before {
    from, to {
      transform: translateX(0);
    }
    50% {
      transform: translateX(3px);
    }
  }
  @keyframes dog-tail-before {
    from, to {
      transform: translateX(0);
    }
    50% {
      transform: translateX(3px);
    }
  }
  
  .legs {
    position: absolute;
    top: 97%;
    left: 0;
    width: 100%;
    height: 30%;
    z-index: 2;
    -webkit-animation: dog-legs 1s ease-out infinite 1.5s;
            animation: dog-legs 1s ease-out infinite 1.5s;
    -webkit-animation-fill-mode: both;
            animation-fill-mode: both;
    -webkit-animation-direction: alternate;
            animation-direction: alternate;
  }
  @-webkit-keyframes dog-legs {
    from {
      transform: translateY(-1px);
    }
    to {
      transform: translateY(0px);
    }
  }
  @keyframes dog-legs {
    from {
      transform: translateY(-1px);
    }
    to {
      transform: translateY(0px);
    }
  }
  .legs__front, .legs__back {
    width: 10%;
    height: 100%;
    background-color: #f79e38;
    position: absolute;
    border-bottom-right-radius: 100%;
    border-bottom-left-radius: 100%;
  }
  .legs__front:after, .legs__back:after {
    content: "";
    position: absolute;
    top: 50%;
    width: 100%;
    height: 49%;
    background-color: #fff;
    border-bottom-right-radius: 100%;
    border-bottom-left-radius: 100%;
  }
  .legs__front--left {
    left: 38%;
    transform: rotate(1deg);
  }
  .legs__front--right {
    left: 20%;
    transform: rotate(-4deg);
  }
  .legs__back--left {
    left: 69%;
    transform: rotate(-7deg);
  }
  .legs__back--right {
    left: 85%;
    transform: rotate(2deg);
  }
  
  .face {
    height: 40%;
    width: 42%;
    position: absolute;
    top: -13%;
    left: -3%;
    background-color: #fff;
    border-top-right-radius: 45% 50%;
    border-top-left-radius: 35% 50%;
    border-bottom-left-radius: 35% 21%;
    z-index: 6;
  }
  .face:after, .face:before {
    content: "";
    position: absolute;
    background-color: #f79e38;
  }
  .face:after {
    width: 27%;
    left: 7%;
    height: 23%;
    border-top-right-radius: 100% 100%;
    border-bottom-left-radius: 49% 100%;
    transform: rotate(-64deg);
    top: -1%;
    border-top-left-radius: 0% -20%;
    border-bottom-right-radius: 52% 0%;
    box-shadow: rgba(0, 0, 0, 0.1) 2px -6px 11px 1px;
  }
  .face:before {
    width: 55%;
    left: 42%;
    top: 0%;
    height: 35%;
    border-radius: 23% 7% 16% 12%;
    transform: rotate(0deg) scaleX(-1);
  }
  
  .eye {
    width: 6%;
    height: 6%;
    position: absolute;
    border-radius: 100%;
    top: 24%;
    background-color: #000;
    z-index: 6;
    -webkit-animation: dog-eye 1800ms infinite;
            animation: dog-eye 1800ms infinite;
  }
  @-webkit-keyframes dog-eye {
    from, to {
      -webkit-animation-timing-function: step-end;
              animation-timing-function: step-end;
      opacity: 1;
    }
    50%, 55% {
      -webkit-animation-timing-function: step-start;
              animation-timing-function: step-start;
      opacity: 0;
    }
  }
  @keyframes dog-eye {
    from, to {
      -webkit-animation-timing-function: step-end;
              animation-timing-function: step-end;
      opacity: 1;
    }
    50%, 55% {
      -webkit-animation-timing-function: step-start;
              animation-timing-function: step-start;
      opacity: 0;
    }
  }
  .eye--left {
    left: 27%;
  }
  .eye--right {
    left: 46%;
  }
  
  .mouth {
    background-color: transparent;
    border-color: #000;
    width: 44%;
    border-style: solid;
    border-width: 0.7vmin;
    height: 48%;
    z-index: 6;
    position: absolute;
    bottom: 35%;
    left: 14%;
    border-top-color: transparent;
    border-bottom-left-radius: 72% 100%;
    border-bottom-right-radius: 77% 100%;
    border-right-color: transparent;
    border-top-right-radius: 50%;
    border-left-color: transparent;
    transform: rotate(-41deg);
  }
  
  .year {
    position: absolute;
  }
  .year--left {
    top: -40%;
    left: 3%;
    height: 47%;
    width: 19%;
    z-index: 1;
    background-color: #e99036;
    border-top-left-radius: 68% 100%;
    border-top-right-radius: 100% 100%;
    transform-origin: bottom center;
    -webkit-animation: left-year 1000ms ease-out infinite;
            animation: left-year 1000ms ease-out infinite;
    -webkit-animation-fill-mode: both;
            animation-fill-mode: both;
    -webkit-animation-direction: alternate;
            animation-direction: alternate;
  }
  @-webkit-keyframes left-year {
    from {
      transform: rotate(-26deg);
    }
    25% {
      transform: rotate(-35deg);
    }
    50% {
      transform: rotate(-26deg);
    }
    to {
      transform: rotate(-40deg);
    }
  }
  @keyframes left-year {
    from {
      transform: rotate(-26deg);
    }
    25% {
      transform: rotate(-35deg);
    }
    50% {
      transform: rotate(-26deg);
    }
    to {
      transform: rotate(-40deg);
    }
  }
  .year--right {
    top: -39%;
    left: 19%;
    height: 38%;
    width: 18%;
    z-index: 1;
    background-color: #f79e38;
    border-top-left-radius: 56% 100%;
    border-top-right-radius: 100% 100%;
    transform-origin: bottom center;
    border-bottom-right-radius: 14% 38%;
    -webkit-animation: right-year 1000ms ease-out infinite;
            animation: right-year 1000ms ease-out infinite;
    -webkit-animation-fill-mode: both;
            animation-fill-mode: both;
    -webkit-animation-direction: alternate;
            animation-direction: alternate;
  }
  @-webkit-keyframes right-year {
    from {
      transform: rotate(-331deg);
    }
    25% {
      transform: rotate(-320deg);
    }
    50% {
      transform: rotate(-331deg);
    }
    to {
      transform: rotate(-320deg);
    }
  }
  @keyframes right-year {
    from {
      transform: rotate(-331deg);
    }
    25% {
      transform: rotate(-320deg);
    }
    50% {
      transform: rotate(-331deg);
    }
    to {
      transform: rotate(-320deg);
    }
  }
  
  .nose {
    position: absolute;
    width: 24%;
    height: 24%;
    background-color: #fff;
    z-index: 7;
    left: -12%;
    top: -3%;
    border-bottom-left-radius: 50% 88%;
    border-top-left-radius: 11% 43%;
    transform: rotate(12deg);
  }
  .nose:after {
    content: "";
    position: absolute;
    width: 50%;
    height: 55%;
    background-color: #000;
    border-radius: 100%;
    left: -7%;
    top: -18%;
  }