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