I realize this is going to come off as dismissive, but don't use fixed container widths. Responsive design is a paradigm shift away from perfect pixel-level co

I realize this is going to come off as dismissive, but don't use fixed container widths. Responsive design is a paradigm shift away from perfect pixel-level control over every container size on a static-width document. It's not print design, it's a different medium. Stop making fixed layouts that break whenever I snap a window at half-width to the side of my screen; there are legitimate reasons why someone on a computer might want their fonts to be bigger or smaller, and your column widths should adjust to accommodate that.