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