Search notes:
CSS property: border-spacing
The value of border-spacing controls the distance between the borders of adjacent cells.
In order for this property to take effect,
border-collapse must be set to
separate.
<!DOCTYPE html>
<html>
<head>
<meta content="text/html;charset=utf-8" http-equiv="Content-Type">
<title>CSS property: border-spacing</title>
<style type="text/css">
div {font-family: monospace; margin-bottom: 1em; font-size: 20px}
td {border: 1px solid black}
#em1 {border-spacing: 1em}
#em1_em0 {border-spacing: 1em 0em}
#em0_em1 {border-spacing: 0em 1em}
#px0 {border-spacing: 0px}
#px1 {border-spacing: 1px}
td.grid {vertical-align: top; padding:10px; border: 1px #222 dotted}
#grid {border-collapse: collapse}
</style>
</head>
<body>
<table border='0' id='grid'>
<tr>
<td class='grid'>
<div>no border-spacing</div>
<table summary='.'>
<tr><td>foo</td><td>one </td> </tr>
<tr><td>bar</td><td>two </td></tr>
<tr><td>baz</td><td>three</td></tr>
</tbody>
</table>
</td><td class='grid'>
<div>border-spacing: 0px</div>
<table summary='.' id='px0'>
<tr><td>foo</td><td>one </td> </tr>
<tr><td>bar</td><td>two </td></tr>
<tr><td>baz</td><td>three</td></tr>
</tbody>
</table>
</td><td class='grid'>
<div>border-spacing: 1px</div>
<table summary='.' id='px1'>
<tr><td>foo</td><td>one </td> </tr>
<tr><td>bar</td><td>two </td></tr>
<tr><td>baz</td><td>three</td></tr>
</tbody>
</table>
</td>
</tr><tr>
<td class='grid'>
<div>border-spacing: 1em</div>
<table summary='.' id='em1'>
<tr><td>foo</td><td>one </td> </tr>
<tr><td>bar</td><td>two </td></tr>
<tr><td>baz</td><td>three</td></tr>
</tbody>
</table>
</td><td class='grid'>
<div>border-spacing: 1em 0em</div>
<table summary='.' id='em1_em0'>
<tr><td>foo</td><td>one </td> </tr>
<tr><td>bar</td><td>two </td></tr>
<tr><td>baz</td><td>three</td></tr>
</tbody>
</table>
</td><td class='grid'>
<div>border-spacing: 0em 1em</div>
<table summary='.' id='em0_em1'>
<tr><td>foo</td><td>one </td> </tr>
<tr><td>bar</td><td>two </td></tr>
<tr><td>baz</td><td>three</td></tr>
</tbody>
</table>
</td></tr>
</body>
</html>