throbber animation

by Alexandru Gatea

HTML

<div id="throbber"></div>
<div class="throbber"></div>

SCSS

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
    height: 100vh;
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center center;
  background-color:#212121;
  background-image: url('https://www.seedinvest.com/wp-content/uploads/2014/12/1600x1200-new-york-city-skyline-wallpaper-black-and-white.jpg');
  background-blend-mode: multiply;
}

#throbber,
.throbber {
  display: block;
  width: 100%;
  height: 100vh;
  position: fixed;
  top: 0%;
  left: 0%;
  &:before,
  &:after {
    position: absolute;
    content: "";
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 10px solid;
    left:50%;
    top: 50%;
    margin-top:-25px;
    margin-left:-25px;
    mix-blend-mode: screen;
    background-blend-mode: screen;
  }
}

#throbber {
  animation: rotate 4s linear infinite ;
  height: 100vh;
  &:before {
    background: rgba(198, 40, 40, 0.3);
    border-color: rgba(198, 40, 40, 0.5);
    animation: toBottom 2s ease-in-out infinite;
  }
  &:after {
    background: rgba(255, 143, 0, 0.3);
    border-color: rgba(255, 143, 0, 0.5);
    animation: toTop 2s ease-in-out infinite;
  }
}

.throbber {
  animation: rotate 4s linear infinite;
  &:before {
    background: rgba(2, 119, 189, 0.3);
    border-color: rgba(2, 119, 189, 0.5);
    animation: toRight 2s ease-in-out infinite;
  }
  &:after {
    background: rgba(85, 139, 47, 0.3);
    border-color: rgba(85, 139, 47, 0.5);
    animation: toLeft 2s ease-in-out infinite;
  }
}

@keyframes toBottom {
  0% {
    transform:translateY(-50px);
  }
  50% {
    transform:translateY(50px);
  }
  100% {
    transform:translateY(-50px);
  }
}

@keyframes toTop {
  0% {
    transform:translateY(50px);
  }
  50% {
    transform:translateY(-50px);
  }
    100% {
    transform:translateY(50px);
  }
}

@keyframes toRight {
  0% {
    transform:translateX(-50px);
  }
  50% {
       transform:translateX(50px);
  }
    100% {
    transform:translateX(-50px);
 ...