Lotus Notes table borders are a bit thick or clunky. Here is some code to add that will make the lotus notes web table borders thin.

Stick this code in your web page:

<style type="text/css">
/* <![CDATA[ */
#obmessage table, #obmessage td
{
border-width: 1px 1px 1px 1px;
border-spacing: 0;
margin:0;
border-collapse: collapse;
}
/* ]]> */
</style>

or  just

<style type="text/css">
TABLE {border-collapse:collapse}
</style>

and enter your lotus notes web table as before.