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