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CSS

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HTML Settings

Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

HTML

              
                .button__wrap
  button.button(style=`--hue: ${Math.random() * 360}`) Show me attention
  .button__shadow
              
            
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CSS

              
                body
  min-height 100vh
  display flex
  align-items center
  justify-content center
  
.button
  --y -25
  --x 0
  --rotation 0
  --speed 2
  --txt "Show me attention"
  --padding 1rem 1.25rem
  cursor pointer
  padding var(--padding)
  color transparent
  font-weight bold
  font-size 1.25rem
  transition background .1s ease
  background 'hsl(%s, 100%, 50%)' % (var(--hue))
  outline-color 'hsl(%s, 100%, 80%)' % (var(--hue))
  animation-name flow-and-shake
  animation-duration calc(var(--speed) * 1s)
  animation-iteration-count infinite
  animation-timing-function ease-in-out
  
  &:after
    content var(--txt)
    position absolute
    top 0
    right 0
    bottom 0
    left 0
    padding var(--padding)
    color #fff
  
  &:hover
    background 'hsl(%s, 100%, 40%)' % (var(--hue))
    --speed .1
    --rotation -1
    --y -1
    --x 1
    --txt "Click me!"
      
  &:active
    --speed 4
    --x 0
    --y 5
    --rotation 0
    --txt "Ahhhh..."
    background 'hsl(%s, 100%, 30%)' % (var(--hue))

    
  &__wrap
    position relative
    
  &__shadow
    position absolute
    border-radius 100%
    bottom 0
    left 0
    right 0
    height 4px
    background hsl(0, 10%, 65%)
    animation shadow 2s infinite ease-in-out
    z-index -1
  

@keyframes shadow
  0%, 100%
    transform scaleX(1)
    opacity 1
  50%
    opacity .2
    transform scaleX(.25)

@keyframes flow-and-shake
  0%, 100%
    transform translate(calc(var(--x) * -1%), 0) rotate(calc(var(--rotation) * -1deg))
  50%
    transform translate(calc(var(--x) * 1%), calc(var(--y) * 1%)) rotate(calc(var(--rotation) * 1deg))
              
            
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JS

              
                
              
            
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999px

Console