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