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