proc template;
  define style styles.test;
     parent=styles.default;
        style table from table /
            outputwidth=99%
            prehtml='<DIV style="overflow:auto;WIDTH:99%;HEIGHT:348px"  id="data">'
            posthtml="</div>";
        style header from header /
            htmlstyle='z-index:20;POSITION:relative;TOP: expression(container=data.scrollTop-2)';
        style rowheader from rowheader /
            htmlstyle='position:relative;left:expression(container=data.scrollLeft-2)';
      end;
run;
ods html file="temp.html" style=styles.test ;

proc print data=sashelp.shoes(obs=300);
id product  /style(header)={htmlclass="rowheader header" htmlstyle="z-index:30"};
run;

ods html close;