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