render different

I don't know why I get a different render with

<table width="797" border="0" cellpadding="0" cellspacing="0">

or

<table id="topTable">

#topTable
{
width:797px;
border:0 none;
border-spacing:0px;
padding:0px;
margin:0px;
border-collapse:collapse;
background-color:transparent;
}

with css I get white lines everywhere like a cellspacing="2"

do you know w hy

thank you

No idea, can we see a link and can you tell me what browser you are seeing this in? I do know that it would be better for a border: none; than border: 0 none; as that may be too redundant for outdated browsers like Internet Explorer.

I found it >>
td {padding:0}

thank you