Background gradients are a staple of any web 2.0 site. They will double the credibility of your words.
Here's the gradient used on this page: gradient1.png
The CSS attatches the image to the <body> tag and then tiles the image horizontally. The background color is set to match the gradient stop.
user.css:
body {
background: #F5F5F5;
background-image: url(resources/gradient1.png);
background-repeat: repeat-x;
background-position: top;
}
A fancier trick is to use a translucent gradient, allowing the background color to show through it.
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