button Boo!
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*
*:after
*:before
box-sizing border-box
:root
--bg #fafafa
body
display flex
align-items center
justify-content center
min-height 100vh
background var(--bg)
color var(--bg)
button
--borderWidth 5
--boxShadowDepth 8
--buttonColor red
--fontSize 3
--horizontalPadding 16
--verticalPadding 8
background transparent
border calc(var(--borderWidth) * 1px) solid var(--buttonColor)
box-shadow calc(var(--boxShadowDepth) * 1px) calc(var(--boxShadowDepth) * 1px) 0 #888
color var(--buttonColor)
cursor pointer
font-size calc(var(--fontSize) * 1rem)
font-weight bold
outline transparent
padding calc(var(--verticalPadding) * 1px) calc(var(--horizontalPadding) * 1px)
transition box-shadow .15s ease
&:hover
box-shadow calc(var(--boxShadowDepth) / 2 * 1px) calc(var(--boxShadowDepth) / 2 * 1px) 0 #888
&:active
box-shadow 0 0 0 #888
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