This post should be titled “Getting Ahead of Yourself.” “…By a Few Years,” actually. Here’s the deal: at the time I’m writing this, early 2013, there’s no way to accurately design for the Web using physical units, nor will there be for a very long time. But there is a way to design while knowing the physical characteristics of the device — or, at least, there will be in the very near future.
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Responsive Web Design With Physical Units
As printed typography enjoys the fruits of high-DPI glory, proudly displaying its beautiful curves and subtleties, its on-screen counterpart remains stifled by bulky pixels, living in a world of jagged edges, distorted letterforms and trimmed serifs. Until display manufacturers produce affordable 200 or 300 PPI monitors, we’ll have to rely on software advances to fix these problems.
Enter anti-aliasing: the next best thing to a world of higher-resolution monitors. The concept of anti-aliasing is fairly simple: add semi-transparent pixels along the edges of letterforms to smooth the appearance of the “stair-step” effect.
The Ails Of Typographic Anti-Aliasing