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