uses of cellpadding and cellspacing

Asked on February 16, 2015
I want to create a table in HTML using Dreamweaver its added cellpadding and cellspacing, anyone tell me the use of this attributes ?
my code is here
<table width="770" border="1" cellpadding="0" cellspacing="0">
<caption>
Student Name
</caption>
<tr>
<td> </td>
<td colspan="4" align="center">Ist Student </td>
<td colspan="5" align="center">2nd Student </td>
</tr>
<tr>
<td width="70">1</td>
<td width="70">a</td>
<td width="70">b</td>
<td width="70">c</td>
<td width="70">d</td>
<td width="70">e</td>
<td width="70">f</td>
<td width="70">g</td>
<td width="70">i</td>
<td width="76">j</td>
</tr>
<tr>
<td width="70">2</td>
<td width="70">a</td>
<td width="70">b</td>
<td width="70">c</td>
<td width="70">d</td>
<td width="70">e</td>
<td width="70">f</td>
<td width="70">g</td>
<td width="70">i</td>
<td width="76">j</td>
</tr>
<tr>
<td width="70">3</td>
<td width="70">a</td>
<td width="70">b</td>
<td width="70">c</td>
<td width="70">d</td>
<td width="70">e</td>
<td width="70">f</td>
<td width="70">g</td>
<td width="70">i</td>
<td width="76">j</td>
</tr>
<tr>
<td width="70">4</td>
<td width="70">a</td>
<td width="70">b</td>
<td width="70">c</td>
<td width="70">d</td>
<td width="70">e</td>
<td width="70">f</td>
<td width="70">g</td>
<td width="70">i</td>
<td width="76">j</td>
</tr>
</table>
<caption>
Student Name
</caption>
<tr>
<td> </td>
<td colspan="4" align="center">Ist Student </td>
<td colspan="5" align="center">2nd Student </td>
</tr>
<tr>
<td width="70">1</td>
<td width="70">a</td>
<td width="70">b</td>
<td width="70">c</td>
<td width="70">d</td>
<td width="70">e</td>
<td width="70">f</td>
<td width="70">g</td>
<td width="70">i</td>
<td width="76">j</td>
</tr>
<tr>
<td width="70">2</td>
<td width="70">a</td>
<td width="70">b</td>
<td width="70">c</td>
<td width="70">d</td>
<td width="70">e</td>
<td width="70">f</td>
<td width="70">g</td>
<td width="70">i</td>
<td width="76">j</td>
</tr>
<tr>
<td width="70">3</td>
<td width="70">a</td>
<td width="70">b</td>
<td width="70">c</td>
<td width="70">d</td>
<td width="70">e</td>
<td width="70">f</td>
<td width="70">g</td>
<td width="70">i</td>
<td width="76">j</td>
</tr>
<tr>
<td width="70">4</td>
<td width="70">a</td>
<td width="70">b</td>
<td width="70">c</td>
<td width="70">d</td>
<td width="70">e</td>
<td width="70">f</td>
<td width="70">g</td>
<td width="70">i</td>
<td width="76">j</td>
</tr>
</table>

Replied on February 20, 2015
Cellpadding and Cellspacing are very important attributes of html table element.
Cellpadding: Distance in pixel between cell content and cell border.
Cellspacing : Distance in pixel between two adjoining cells.