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