When I designed my first website for SDSU's Department of Educational Technology, I carefully built the site to fit within a 640 x 480 resolution. Two decades, and numerous technology advances later, I think it's funny that we are once again building websites with small screens in mind.
Dr. Oliva Espín Website. I converted a legacy static website into a responsive one using the Foundation framework, and refactored pages of messy, presentational code into clean, semantic HTML.
DET/CHE 2010 Conference Website. I was thrilled to finally use web fonts and CSS rounded corners to achieve effects that previously would've required images and table-layout tricks.
ITS Department Website. I handed off the information architecture and wireframes to ITS graphic designers, and converted their resulting design using CSS into a base layout requiring only 1.5 KB of images.