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