Believe it or not, there's an image format which is built right into your browser. It allows images to be downloaded even before you need them, renders them perfectly on Retina screens, and allows them to have CSS colours and effects applied to them. Ok, I'm not being entirely truthful there. It's not an image format as such – but the rest still applies. Using Unicode you can create icons that are resolution independent, have virtually no download time and can also be styled with CSS. In this article, I'll run you through the basics, as well as some of the interesting things that you can do with Unicode. So, What is Unicode
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