changes in the article display in joomla

I am trying to get all the articles that I have included to appear on the front page. I have published all of them and also enabled the Front Page column for each of them . But the problem is that one of the articles (say 'main article') occupy the 开发者_如何学Goentire width and the others appear side by side. I want of all them to appear taking up the entire width.

<table>
<tr><td>Main article</td></tr>
<tr><td>Sub Article1</td>
    <td>Sub Article2</td>
</tr>
<tr><td>Sub Article3</td>
    <td>Sub Article4</td>
</tr>
</table>

but i need them to appear as

<table>
<tr><td>Main article</td></tr>
<tr><td>Sub Article1</td></tr>
<tr><td>Sub Article2</td></tr>
<tr><td>Sub Article3</td></tr>
<tr><td>Sub Article4</td></tr>
</table>

is this question relevant and able to be understood... Please help me out..

You need to setup this in the Menu section. Go to Menu → [Menu where your Front Page assigned]
Than choose menu thread, that response to your Front Page and in it's setup set number of columns to 1 or 0. Thats may help.