Ryan Boudreaux includes all the code snippets you'll need in this demo of how to create an image hover-preview effect using HTML, CSS, and JavaScript.

Open your website's stylesheet in Notepad or your code editor. At the top of the code, write a style rule setting the entire page and HTML body to 100 percent height:html, body { height: 100%; } ...

The HTML Web programming language doesn't offer a specific tag for adding a caption to an image. While it has a tag, it's for adding a label to a table – not for images. There are two ways to creat ...