Element button pseudo-element :after generated with border 0px rgba(0,0,0,1) solid font-weight bold margin 0px transform opacity 0.76 width 160px float left box-sizing content-box font-size 21px line-height 1 padding 20px transition border-radius display block text-shadow 1px 4px 3px rgba(0,0,0,0.2) z-index auto overflow auto height auto cursor default background position relative box-shadow 4px 4px 4px rgba(0,0,0,0.3)