Cfdocument issue

I am facing problem with size in generated PDF is not same with the sample HTML.

Coldfusion version is 11,0,0,289974(developer) and adobe driver version is 5.1.1 (Build 0001)  .

Below is my code;

<CFOUTPUT>

     <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

     <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=shift_jis">

     <CFDOCUMENT format="pdf"  overwrite="yes" fontembed="Yes" pagetype="A4" marginLeft="0" margintop="0" marginright="0" marginbottom="0">

     <HTML>

     <HEAD>

     <TITLE>TEST</TITLE>

     </HEAD>

     <style type="text/css">

          html, body

          {padding:0; margin: 0;}

     </style>

     <BODY>

     <FORM NAME="MEI202"  ACTION="" METHOD="POST" style="padding:0; margin: 0;">

     <table style="position:relative;width:188mm; height:283mm; border:1px blue solid;margin-left:11mm;margin-top:7mm;">

     </table>

     </FORM>

     </BODY>

     </HTML>

     </CFDOCUMENT>

     </CFOUTPUT>

Now, table size in generated PDF bigger than HTML. What is the possible reason and how to fix it.

Thanks.