Element block pseudo-element :before generated with height auto font-weight normal float none background transform font-size 16px cursor default z-index auto width auto line-height 1 border 0px rgba(0,0,0,1) solid padding 16px display block text-shadow 1px 1px 0px rgba(255,255,255,0.2) position static margin 0px transition box-sizing content-box overflow visible box-shadow 0px 0px 1px rgba(0,0,0,0.5) border-radius