March 2008
Google Code Blog: How we improved performance on Google Code
by nhoizeySeptember 2007
Ajaxian » CSS Sprite Generator Released
by nhoizeyWhat are CSS sprites?
by greut & 17 othersCSS sprites are a way to reduce the number of HTTP requests made for image resources referenced by your site. Images are combined into one larger image at defined X and Y coorindates. Having assigned this generated image to relevant page elements the background-position CSS property can then used to shift the visible area to the required component image.
another way to save precious HTTP hits from your page