Element block pseudo-element :after generated with padding 100% position static box-sizing content-box border 0px rgba(0,0,0,1) solid transition text-shadow 1px 1px 1px rgba(0,0,0,0.2) overflow hidden box-shadow 1px 1px 1px rgba(0,0,0,0.3) width 160px cursor default float none border-radius font-size 16px font-weight normal background display block line-height 1 margin 0px height auto z-index auto transform