Faites des arrières plans cannons avec des pages lègères, sans images à charger, grâce aux CSS version 3.
Léa semples : css3 patterns Galerie exemple Capitonnage
exemple de CSS à mettre entre les balises <head></head>:
<style type="text/css">
body { background:
radial-gradient(hsl(0, 100%, 27%) 4%, hsl(0, 100%, 18%) 9%, hsla(0, 100%, 20%, 0) 9%) 0 0,
radial-gradient(hsl(0, 100%, 27%) 4%, hsl(0, 100%, 18%) 8%, hsla(0, 100%, 20%, 0) 10%) 50px 50px,
radial-gradient(hsla(0, 100%, 30%, 0.8) 20%, hsla(0, 100%, 20%, 0)) 50px 0,
radial-gradient(hsla(0, 100%, 30%, 0.8) 20%, hsla(0, 100%, 20%, 0)) 0 50px,
radial-gradient(hsla(0, 100%, 20%, 1) 35%, hsla(0, 100%, 20%, 0) 60%) 50px 0,
radial-gradient(hsla(0, 100%, 20%, 1) 35%, hsla(0, 100%, 20%, 0) 60%) 100px 50px,
radial-gradient(hsla(0, 100%, 15%, 0.7), hsla(0, 100%, 20%, 0)) 0 0,
radial-gradient(hsla(0, 100%, 15%, 0.7), hsla(0, 100%, 20%, 0)) 50px 50px,
linear-gradient(45deg, hsla(0, 100%, 20%, 0) 49%, hsla(0, 100%, 0%, 1) 50%, hsla(0, 100%, 20%, 0) 70%) 0 0,
linear-gradient(-45deg, hsla(0, 100%, 20%, 0) 49%, hsla(0, 100%, 0%, 1) 50%, hsla(0, 100%, 20%, 0) 70%) 0 0;
background-color: #300;
background-size: 100px 100px;
}
</style>