Hoverbox 3 css file seems to be causing errors during validation. I get the following:
HTML Code:
324  	 * html #hoverbox  	 Value Error : margin-top  Lexical error at line 324, column 88. Encountered: "?" (63), after : ""  ? document.documentElement.scrollTop : 0) + 'px');
325 	margin-left 	Value Error : margin-top Parse Error margin-left: expression( -1 * this.offsetWidth / 2 + (document.documentElement ? document.documentElement.scrollLeft : 0) + 'px');
328 	margin-left 	Value Error : margin-top Parse error - Unrecognized }
331 	* html #overlay 	Value Error : height Lexical error at line 331, column 96. Encountered: "?" (63), after : "" ? document.body.scrollHeight : document.documentElement.scrollHeight) > document.body.offsetHeight ? (document.body.scrollHeight > document.documentElement.scrollHeight ? document.body.scrollHeight : document.documentElement.scrollHeight) : document.body.offsetHeight + 'px');
332 	width 	Value Error : height Parse Error width: expression((document.body.scrollWidth > document.documentElement.scrollWidth ? document.body.scrollWidth : document.documentElement.scrollWidth) > document.body.offsetWidth ? (document.body.scrollWidth > document.documentElement.scrollWidth ? document.body.scrollWidth : document.documentElement.scrollWidth) : document.body.offsetWidth + 'px');
333 	width 	Value Error : height Parse error - Unrecognized }
Anyone know if these are to be expected or how to resolve them?