CSS Overlay Techniques

Overlays can sometimes be annoying, but also undoubtedly have their useful use cases. There are different approaches to creating overlays, some of them work better than others, and some of them come with gotchas that you need to be aware of, including performance implications. In HTML5, we also get a native way to create modals with less hassle and less code. In this article, we will cover all of that.

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