In theme level we can make navigation bar and content parallel
Its by modifying in portal_normal.vm file
Use table concept and put navigation and content in same <tr> and different <td>
ie.
<table>
<tr>
<td>
navigation bar items
</td>
<td>
content items
</td>
</tr>
</table>
PORTAL_NORMAL.VM FILE EXAMPLE:
<table width="100%">
<tr>
<td style="background:#F2F7FA;width: 182px;">
#if ($has_navigation || $is_signed_in)
#parse ("$full_templates_path/navigation.vm")
#end
</td>
<td valign="top">
<div id="content">
#if ($selectable)
$theme.include($content_include)
#else
$portletDisplay.recycle()
$portletDisplay.setTitle($the_title)
$theme.wrapPortlet("portlet.vm",
$content_include)
</td>
</tr>
</table>
#end
</div>
Its by modifying in portal_normal.vm file
Use table concept and put navigation and content in same <tr> and different <td>
ie.
<table>
<tr>
<td>
navigation bar items
</td>
<td>
content items
</td>
</tr>
</table>
PORTAL_NORMAL.VM FILE EXAMPLE:
<table width="100%">
<tr>
<td style="background:#F2F7FA;width: 182px;">
#if ($has_navigation || $is_signed_in)
#parse ("$full_templates_path/navigation.vm")
#end
</td>
<td valign="top">
<div id="content">
#if ($selectable)
$theme.include($content_include)
#else
$portletDisplay.recycle()
$portletDisplay.setTitle($the_title)
$theme.wrapPortlet("portlet.vm",
$content_include)
</td>
</tr>
</table>
#end
</div>