To make sure that all tables are uniform, specify the OUTPUTWIDTH= attribute for the Table style element. This will add the value of the OUTTPUTWIDTH= attribute to the WIDTH= attribute within the HTML table tag. The value can be a percentage or a hardcoded width. The below example specifies the OUTPUTWIDTH= attribute for the Table style element which ensures that that the BY-groups maintain uniform tables.

   proc template;
      define style styles.test;
      parent=styles.default;
      style table from table /
            outputwidth=50%;
   end;
   run;

   proc sort data=sashelp.class;
      by age;
   run;

   ods html file="temp.html" style=styles.test;

   proc print data=sashelp.class ;
      by age;
   run;

   ods html close;

See also the full SAS Notes and Concepts for ODS.

Operating System and Release Information