Banner Overlapping Page

Hi,
today I descovered when I made my window smaller, my forum's banner overlapped the main body of my forum; As well as the navbar. I tried this on The Forums of Forums (Same version of forum) and the banner did not overlap. How do I fix this?

Here are screenshots to describe what I mean:
Overlapping


Not Overlapping


Thanks,
-TR

Hello,

That's why the CSS fixed the page width.
Go to the CSS editor, copy all the code, and paste it here.

Cordially,
ProgVal

How do I get to my CSS Editor?

ACP/Display/Colors/CSS Style sheet

Thanks.
This is what it says:

.second_nav {
padding: 0 0 0 0;
background-image: url('');
border-color: transparent;
width:98%;
}

Try to put this code into the CSS editor:

Code:

body#phpbb div#wrap
{
  max-width: 95%;
}

If it doesn't work, try this one: (replace the previous code by the fellowing)

Code:

body#phpbb div#wrap
{
  width: 95%;
}