What\'s the Smallest Stable Data URI for a Transparent GIF Image?

Achieving the Smallest Possible Transparent Image Data URI

When working with sprites, it becomes necessary to employ transparent images to seamlessly integrate background images while providing alternative text for icons. Utilizing data URIs can help minimize HTTP requests.

However, challenges arise in determining the smallest possible string to render a transparent image through a data URI. Various attempts have been made, but some transparent GIFs exhibit instability, causing CSS glitches or hindering the application of background images.

After extensive testing, it has been discovered that while a shorter version (74 bytes) exists, it tends to be unstable, potentially leading to graphical issues. Therefore, the recommended solution is to use a slightly longer but more stable version (78 bytes):

data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7

Important Note: Do not omit the "image/gif" header, as suggested elsewhere. Doing so can cause the data URI to break in several browsers.

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