.scroll-effect {
    width: 18px;
    margin: 0 auto;
  }

  .scroll-effect-arrows {
    margin: 0 auto;
    margin-top: -4px;
  }

  .scroll-effect-arrows span {
    display: block;
    width: 5px;
    height: 5px;
    -ms-transform: rotate(45deg);
    /* IE 9 */
    -webkit-transform: rotate(45deg);
    /* Chrome, Safari, Opera */
    transform: rotate(45deg);
    border-right: 2px solid white;
    border-bottom: 2px solid white;
    margin: 0 0 3px 6px;
    margin-top: -4px;
  }

  .scroll-effect-arrows span.unu {
    margin-top: 6px;
  }

  .scroll-effect-arrows span.unu,
  .scroll-effect-arrows span.doi,
  .scroll-effect-arrows span.trei {
    -webkit-animation: mouse-scroll 1s infinite;
    -moz-animation: mouse-scroll 1s infinite;
  }

  .scroll-effect-arrows span.unu {
    -webkit-animation-delay: 0.1s;
    -moz-animation-delay: 0.1s;
    -webkit-animation-direction: alternate;
  }

  .scroll-effect-arrows span.doi {
    -webkit-animation-delay: 0.2s;
    -moz-animation-delay: 0.2s;
    -webkit-animation-direction: alternate;
  }

  .scroll-effect-arrows span.trei {
    -webkit-animation-delay: 0.3s;
    -moz-animation-delay: 0.3s;
    -webkit-animation-direction: alternate;
  }

  .scroll-effect-mouse {
    height: 28px;
    width: 14px;
    border-radius: 10px;
    transform: none;
    border: 2px solid white;
    top: 170px;
  }

  .scroll-effect-mouse .wheel {
    height: 5px;
    width: 2px;
    display: block;
    margin: 3px auto 5px auto;
    background: white;
    position: relative;
    -webkit-animation: mouse-wheel 1.2s ease infinite;
    -moz-animation: mouse-wheel 1.2s ease infinite;
  }

  @-webkit-keyframes mouse-wheel {
    0% {
      opacity: 1;
      -webkit-transform: translateY(0);
      -ms-transform: translateY(0);
      transform: translateY(0);
    }

    100% {
      opacity: 0;
      -webkit-transform: translateY(6px);
      -ms-transform: translateY(6px);
      transform: translateY(6px);
    }
  }

  @-moz-keyframes mouse-wheel {
    0% {
      top: 1px;
    }

    50% {
      top: 2px;
    }

    100% {
      top: 3px;
    }
  }

  @-webkit-keyframes mouse-scroll {
    0% {
      opacity: 0;
    }

    50% {
      opacity: 0.5;
    }

    100% {
      opacity: 1;
    }
  }

  @-moz-keyframes mouse-scroll {
    0% {
      opacity: 0;
    }

    50% {
      opacity: 0.5;
    }

    100% {
      opacity: 1;
    }
  }

  @-o-keyframes mouse-scroll {
    0% {
      opacity: 0;
    }

    50% {
      opacity: 0.5;
    }

    100% {
      opacity: 1;
    }
  }

  @keyframes mouse-scroll {
    0% {
      opacity: 0;
    }

    50% {
      opacity: 0.5;
    }

    100% {
      opacity: 1;
    }
  }