PNG images slow down html rendering?

Question

I use several PNG images (via CSS) in the site template, xhtml and CSS,

I saved png as little as possible and optimized as much as possible, but when testing in any browser (Safari, Firefox, IE), it takes at least 2 seconds to render.

Unfortunately, I can not share this code here, but I can say that I deleted all javascript, and my html code is quite small (about 250 lines and without tables) and it checks correctly.

I would like to know if PNG is the “guilty” part, since this is my first website made almost exclusively using png (instead of gifs + jpegs) (I will not support IE6, so there is no need to hack it).

Answer 1

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http://css-tricks.com/css-sprites/

http://www.smashingmagazine.com/2009/04/27/the-mystery-of-css-sprites-techniques-tools-and-tutorials/

Answer 2

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Answer 3

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