Preview images with DOM, CSS (and a dash of PHP)

Sometimes it might be a good idea to give visitors an insight of what is lurking behind a link. Normally this is achieved via a thumbnail, but what about inline links?

This article explains how you can enhance a link with a class named “preview” pointing to an image via DOM JavaScript. The enhanced link has a small clickable icon that will show a preview of the linked image. If you have PHP with the GD library enabled, it even creates the preview on the fly.

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