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