Element block pseudo-element :before generated with display block width 160px transition margin 0px background line-height 1 z-index auto position static height auto transform overflow hidden box-sizing content-box font-weight normal padding 20px border-radius cursor default text-shadow 1px 1px 1px rgba(0,0,0,0.2) float none box-shadow 1px 1px 1px rgba(0,0,0,0.3) border 1px rgba(0,0,0,1) solid font-size 14px