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