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