If a style sheet is made for the page for the page, and it turns out that in different versions of the same element, different values of the same property are needed for the same element, in this case you need to write several additional style sheets for each version
<!--[if IE 8]> <link href="css/ie8-style.css" rel="stylesheet" type="text/css" /> <![endif]--> <!--[if IE 7]> <link href="css/ie7-style.css" rel="stylesheet" type="text/css" /> <![endif]-->
or somehow you can combine everything in one style sheet, but so that each version doesn’t read what is written for it?