• 
  
• Go to your Board Wrappers (in AdminCP under the Skinning and Styles section) and locate the Header and Body section
  
• Look for the <% BOARD HEADER %> tag
  
• Right above it, add the code in red below
  

Quote:

 

...
<div id='board'>
<% BOARD HEADER %>
...

• 
  
  
  
• Scroll down to the Footer section and include the following red code to the top of that box
  
  

Quote:

 

</div>

• 
  
  
• Click on the Edit Wrapper button to save the changes
  

  ---

  
  
  
• Go to Manage Style Sheets (in the same section from the menu on the left of AdminCP)
  
  
• Locate the word BODY within the text box (it may appear in all capital or lowercase lettering)
  
  
• Add the following code in red between the curly braces (preferably right after the opening one — yours may not look exactly the same)
  
  

Quote:

 

BODY { text-align: center; color: #000; margin: 0px; padding: 0px; background-color: #FFF; }

• 
  
  
  
• Add the following code to your style sheet, changing the part in red to your desired width in pixels
  Please note that the minimum board width will be limited by the size of the Ads on your board (which at the time of this writing is 728 pixels wide). If you do not know what pixels are, please take a look at the topic on pixel sizes
  
  

Quote:

 

#board, #ipbwrapper { width: 728px; text-align: left; margin-left:auto; margin-right:auto; }

• 
  
• Click on the Edit CSS button to save the changes