All Browsers Are Different: Browsers have their quirks, and sometimes one stinkin' browser can prevent the web from moving forward.There are many reasons why GIF has managed to stick around, but for the sake of time, we're just going to give you the three big reasons now: Mozilla's APNG (animated PNG) format was created to replace GIF ten years ago, but that didn't work out at all. People have tried to replace the GIF format. The GIF format also doesn't support semi-transparency, and GIFs often have a large file size (more than MP4 video files) because they're uncompressed. GIF files are 8-bit, which means that they're restricted to 256 colors and almost always look like crap. Honestly, GIF is a terribly outdated format.
