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