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