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