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Advanced Articles

Box Sizing

The "box model" in CSS works like this:

width + padding + border = actual visible/rendered width of box
height + padding + border = actual visible/rendered height of box

It's a little weird, but you get used to it. …

Understanding border-image

The new CSS3 property border-image is a little tricky, but it can allow you to create flexible boxes with custom borders (or drop shadows, if that's your thing) with a single div and a single image. In this article I …

CSS Content

CSS has a property called content. It can only be used with the pseudo elements :after and :before. It is written like a pseudo selector (with the colon), but it's called a pseudo element because it's not actually selecting anything …

Efficiently
Rendering CSS

I admittedly don't think about this idea very often... how efficient is the CSS that we write, in terms of how quickly the browser can render it?

This is definitely something that browser vendors care about (the faster pages load …

Pointer Events & Disabling Current Page Links

It is a long-standing web design standard that the logo in the header area links to the homepage of the site. Another standard is that when displaying the navigation of a site, to highlight in some way the "current" page, …

Data URIs

Did you know that you don't have to link to an external image file when using an <img> element in HTML, or declaring a background-image in CSS? You can embed the image data directly into the document with data URIs. The end result can be a site with all the less HTTP Requests, but at what cost?

*May or may not contain any actual "CSS" or "Tricks".