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