After the Flash Text Generator here another free generator patterns for free. Is a amassing web site to make a pattern. I remember one day I lose around 2 hours to create a background pattern for a website.
Here is the code to insert a pattern as background on any website.
HTML:
<body background="pattern.gif">
CSS:
body
{
background-image: url(pattern.gif);
background-color: #000000
}
Web site bgpatterns.com
