Background Image Trickery

According to CSS, any background image that is “fixed” using background-attachment: fixed; is fixed with respect to the viewport-- not the element with which the image is associated. Eric Meyer

For more information about background-attachment: fixed see the classic complexspiral demo by Eric Meyer.

Just one background-image

The light-blue pattern fragments (in the tiling semi-transparent PNG background-image used here) have a 1px solid (white) border.

The containing elements have different background-colors: when transparent it picks up the white background-color from the HTML element, making the pattern appear as a solid flat pattern. When the same light-blue color from the image as background-color is used, then this will trick the eye by making the pattern-fragments appear as white outlines.

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