Cacher is the code snippet organizer for pro developers

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<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7">

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<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAUEBAAAACwAAAAAAQABAAACAkQBADs=">

source: http://css-tricks.com/snippets/html/base64-encode-of-1x1px-transparent-gif/

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