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