Each page of a website has specific dimensions, which are set in the Page Size area of the Page inspector. When a visitor views your website from a browser window that is bigger than the size of a webpage, some of the browser background—the area bigger than the webpage—shows.
You can change the color of the browser background or add an image to it so that it looks good with your webpage. You set the browser background for each page of your website individually.
Select the page whose browser background you want to modify by clicking it in the sidebar on the the left of the iWeb window.
If the Page inspector isn’t open, click the Inspector button in the toolbar at the bottom of the window (or choose View > Show Inspector), and then click the Page button.
Click Layout.
Choose an option from the Browser Background pop-up menu:
Color Fill: Gives the browser background a single solid color. Click the color well and choose a color by dragging the slider and clicking the color wheel.
Image Fill: Lets you use your own image as a background. In the window that opens, browse to choose your image, and then click Open. Choose a scaling option from the Tile pop-up menu.
Note:If you’ve already chosen an image for the background, a Choose button appears below the Tile pop-up menu. Click this button to choose a new image.