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