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