Element button pseudo-element :after generated with width 160px transition box-shadow 1px 1px 1px rgba(0,0,0,0.3) padding 20px font-weight normal border 1px rgba(0,0,0,1) solid text-shadow 1px 1px 1px rgba(0,0,0,0.2) box-sizing content-box font-size 16px margin 0px float none border-radius cursor default position static height auto overflow hidden transform background line-height 1 z-index auto display block