Updates: Added note at end to respond to V1’s comment, and fixed the “awkward CSS syntax” which was actually a big typo (thanks Harmen). The data: URI scheme is now supported by the most current version of every major browser, including Internet Explorer. Because of this I wanted to use CSS background images encoded with data: URIs in a current project at Shepherd Interactive. Why? The first rule
![Detecting Support for data: URIs - Weston Ruter](https://cdn-ak-scissors.b.st-hatena.com/image/square/4005b2b43e768d1293471f11cfbddf09ff428eb5/height=288;version=1;width=512/https%3A%2F%2Fi1.wp.com%2Fweston.ruter.net%2Fwp-content%2Fuploads%2F2020%2F07%2Fcropped-westonruter-favicon.png%3Ffit%3D512%252C512%26ssl%3D1)