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