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