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