PNG supports various combinations of color depth, transparency and color correction. Some combinations work perfectly with every piece of software produced in the last decade, and some more esoteric features are practically useless. Palette with 1-bit transparency (like GIF) IE6 IE7-8 Your browser GIF-like PNG images with simple transparency are supported in all browsers (even as old as IE4) witho
![PNG that works](https://cdn-ak-scissors.b.st-hatena.com/image/square/936ec788c9286fabcf43ee059bd8df728acf5d3e/height=288;version=1;width=512/https%3A%2F%2Fcalendar.perfplanet.com%2Fwp-content%2Fthemes%2Fwpc2%2Fwpclogo.png)