Dumme Frage sorry

Bin eben verzweifelt !
Irgendwie will es nicht klappen
Code:
<head>
<title>margin-bottom</title>
</head>
<body background="background2.bmp">
table width="778" border="1" cellspacing="0" cellpadding="0" vspace="0">
<tr><td colspan="3">
<img src="overframe_Picture.bmp" usemap="#main" border="0" style="margin-bottom:0cm">
</td></tr> Mach ich was falsch?!