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