Dive into the world of CSS pseudo-elements! Learn how to use ::before and ::after to add stylistic content without altering your HTML. Perfect for adding icons, decorative elements, or custom ...

AFAIK, CSS cannot affect the DOM tree. So, display: none just says the element should not be displayed, not that it should cease to exist. Style/structure separation and all that.

Then, the classNames for the form elements are swithced with JavaScript. Marko also uses JavaScript to preloaded the custom images. Here's an example of his technique from the Nacional news magazine: ...