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