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