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