Element block pseudo-element :before generated with border 0px rgba(0,0,0,1) solid background display block padding 20px font-weight normal border-radius cursor default float none position static width 160px font-size 16px box-shadow 1px 1px 1px rgba(0,0,0,0.3) box-sizing content-box margin 0px text-shadow 2px 1px 1px rgba(0,0,0,0.2) z-index auto transition height auto line-height 1 overflow hidden transform