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