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