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