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