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