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