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