Heart Animation

heart-animation.markdown

Heart Animation

A Pen by A. Nonymous on CodePen.

License.

index.html

<div class="parent">
  <div class="heart">
    <span>&hearts;</span>
  </div>
</div>

style.scss

$size: 100px;
$duration: 1.5s;
$timing: ease;

* {
  margin: 0;
  padding: 0;
}

.parent {
  position: relative;
  z-index: 1;
  
  width: 100vw;
  height: 100vh;
  
  display: flex;
  justify-content: center;
  align-items: center;

  background: hsl(0, 0%, 95%);
}

.heart {
  position: relative;
  
  width: $size;
  height: $size;
  
  text-align: center;
  line-height: $size;
  
  background: linear-gradient(to bottom, #E53038, darken(desaturate(#E53038, 10), 5));
  border-radius: 50%;
  cursor: pointer;
  
  box-shadow: 0px 7px 20px hsla(0, 0%, 0%, 0.2);
  animation: beat $duration $timing 0s infinite;
  
  span {
    font-size: 22pt;
    
    color: white;
    text-shadow: 0px 0px 10px hsla(0, 0%, 100%, 0.4);
  }
  
  &:before, &:after {
    content: "";
    position: absolute;
    
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    
    background-color: #E53038;
    opacity: 0.4;
    border-radius: inherit;
  }
  
  &:before {
    z-index: -2;
    animation: beat-before $duration $timing 100ms infinite;
  }
  
  &:after {
    z-index: -1;
    animation: beat-after $duration $timing 200ms infinite;
  }
}



@keyframes beat {
  0% {
    transform: scale(1);
  }
  
  50% {
    transform: scale(1.1);
  }
}

@keyframes beat-before {
  0% {
    transform: scale(1);
  }
  
  50% {
    transform: scale(1.15);
  }
}

@keyframes beat-after {
  0% {
    transform: scale(1);
  }
  
  50% {
    transform: scale(1.3);
  }
}