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