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