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