CSS
What are sprites and why would use them? How do you go about creating them? What are possible alternatives to sprites?Say you found a rendering problem on one of your sites in Internet Explorer 8, which you have decided you are supporting. How would you approach fixing it?Describe what a “reset” CSS file does and how it's useful. Are you familiar with normalize.css? Do you understand how they differ?Say you were tasked with coding a design that used non-standard web fonts, how would you go about it?Have you ever worked with a grid layout? What are your thoughts on that?What's the difference between "resetting" and "normalizing" CSS? Which would you choose, and why?How can CSS be cascaded to mix with users personal sheet?Are quotes mandatory in URLs?What are Sass, Less, and Stylus? Why do people use them? How does something like Compass relate to Sass?Describe z-index and how stacking context is formed?