background-image resize

Hello together,

i want to resize a bigger background-image. is there any way without background-size?

<table border="0" cellspacing="0" cellpadding="0" style="width:21cm;margin:0;padding:0">
<tr>
<td class="background" style="padding-top:1.3cm;padding-left:1.3cm;vertical-align:top;height:8.1cm;width:21cm"><table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr>
<td><img alt="Image from the forum topic: background-image resize" src="logo.png" style="width:3.5cm" /></td>
</tr>
<tr>
<td style="padding-top:1cm;vertical-align:top;font-family:Arial,Helvetica,sans-serif;font-size:0.7cm;line-height:0.9cm;color:#ffffff;text-align:left;text-transform:uppercase">Calculator Result</td>
</tr>
</table></td>
</tr>
</table>

CSS

.background
{
position: inherit;
left: 0;
top: 0;
z-index: 0;
background-color: #fff;
background-image: url(header.jpg) no-repeat center center;
width: 21cm;
height: 8.1cm;
} 

Thank you!
Greetings Stefan