When I need to change container styles, I usually edit their indiviudual CSS files, and many use their own CSS Classes so it's hard to say for sure what the class / tag will be but you should find in in your /portals/_default/containers/{containter_name}/ directory.

SB

It's probably the way the container is coded... Below I've listed a sample of the code I use in some of my containers, the code is based off Evan O'Neil's work, and I'm hoping that posting this doesn't cause any trouble but it should help you see the construction:

This is the "upper" part of the table that's used to construct the container:

<TABLE width="100%"  border="0" cellspacing="0" cellpadding="0"><TR>
  <td valign="top" class="PSP_TL"><img src="dummy.gif" width="10" height="1"  border="0"></TD>
  <td valign="top" class="PSP_T">
    <table width="100%"  border="0" cellspacing="0" cellpadding="0"><tr>
     <td class="PSP_TitleTD"><dnn:TITLE runat="server" id="dnnTITLE" Cssclass="PSP_Title"/></td>
     <td class="PSP_ActionsTD"><dnn:SOLPARTACTIONS runat="server" id="dnnSOLPARTACTIONS" /></td>
    </tr></table>
  </TD>
  <td valign="top" class="PSP_TR"><img src="dummy.gif" width="10" height="1"  border="0"></TD>
 </TR></TABLE>

And then the following is the corresponding CSS code from the .css file:

.PSP_Title { font-size: 14px; line-height: 1.4em; font-family: Verdana; color: #fff; font-weight: bold; }
.PSP_TitleTD { width:100%; padding: 0;}

Hope this helps a little, as there are many ways to code containers.

SB