Check out another of my videos: “BREAKDOWN: Select and Mask vs. Refine Edge – Photoshop CC”
Link to written tutorial:
In the following tutorial we will look at two different, no-nonsense ways to quickly create a full screen background with CSS and CSS3. These two methods work in any of the “good” browsers (Chrome, Firefox, Opera, and Safari) and I’ll give you details on Internet Explorer and what works there. Let’s get going!