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When words aren't enough and you want to express your ideas visually, or just want something that looks cool … insert some images. The two main formats for you to choose your images are a GIF (.gif) file or a JPEG (.jpg) file. These are the most widely supported file formats. Here is a table to demonstrate the differences between the GIF and JPEG files and when it is best for you to use either.
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| 256 Colors |  |
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| Virtually unlimited colors |  |
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| Can have transparent areas | |
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| Can be animated | |
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| Best used for graphics such as clipart, buttons, banners. | |
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| Best used for high definition graphics such as photos and complex images. | |
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Another format for images is the PNG (.png) file. The advantages for using a PNG over a GIF are that you are not limited to 256 colors, and it handles transparencies better. The PNG format is favored by the W3C, although the web-community has not widely used for the simple fact that it is not supported by all web browsers.
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