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The web gains its strength through diversification: the more accessible it is to everyone, the better the results. The alt attribute was an early example of this, but writing good, accurate descriptive text for your images takes knowing a few rules:
It appears that a great many developers have jumped on the HTML5 <figure> element and now wrap it around images with abandon, much as people who discover <div> for the first time tend to use it for everything(“Box all the things!”). This is incorrect: <figure> is not appropriate for all images.
The question to ask before using <figure> is:
“If I took this
<figure>out of its current context and used it someplace else, would it explain itself?”
Bitmaps: images composed of induvidual pixels, or “dots” of color, come in three major formats for the web: JPEG, GIF and PNG. Each of these formats has a particular purpose, use, and limitations.
