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