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