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