Element button pseudo-element :after generated with width 250px font-size 18px overflow hidden padding 20px float none z-index auto cursor default transform position static display block line-height 32 background border 0px rgba(0,0,0,1) solid box-sizing content-box text-shadow 1px 1px 1px rgba(0,0,0,0.2) height 300px margin 0px transition font-weight normal border-radius box-shadow 1px 1px 1px rgba(0,0,0,0.3) outline none opacity 1