#loader {
    position: fixed;
    top: 25%;
    left: 50%;
    margin-top: -2.7em;
    margin-left: -2.7em;
    width: 5.4em;
    height: 5.4em;
  
  }
  
  #hill {
    position: absolute;
    width: 7.1em;
    height: 7.1em;
    top: 1.7em;
    left: 1.7em;
    background-color: transparent;
    border-left: .25em solid #fe0008;
    transform: rotate(45deg);
  }
  
  #hill:after {
    content: '';
    position: absolute;
    width: 7.1em;
    height: 7.1em;
    left: 0;
    
  }
  
  #box {
    position: absolute;
    left: 0;
    bottom: -.1em;
    width: 1em;
    height: 1em;
    background-color: #f79e02;
    border: 0.35em solid #f79e02;
    border-radius: 15%;
    transform: translate(0, -1em) rotate(-45deg);
    animation: push 2.5s cubic-bezier(.79, 0, .47, .97) infinite;
  }
  
  @keyframes push {
    0% {
      transform: translate(0, -1em) rotate(-45deg);
    }
    5% {
      transform: translate(0, -1em) rotate(-50deg);
    }
    20% {
      transform: translate(1em, -2em) rotate(47deg);
    }
    25% {
      transform: translate(1em, -2em) rotate(45deg);
    }
    30% {
      transform: translate(1em, -2em) rotate(40deg);
    }
    45% {
      transform: translate(2em, -3em) rotate(137deg);
    }
    50% {
      transform: translate(2em, -3em) rotate(135deg);
    }
    55% {
      transform: translate(2em, -3em) rotate(130deg);
    }
    70% {
      transform: translate(3em, -4em) rotate(217deg);
    }
    75% {
      transform: translate(3em, -4em) rotate(220deg);
    }
    100% {
      transform: translate(0, -1em) rotate(-225deg);
    }
  }