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