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