em-based type and other flexible techniques of responsive design. There's another way to achieve flexibility that doesn't involve keeping track of ems or percentages -- the new CSS REM unit.

Imagine having a lightweight, custom CSS framework that’s perfectly ... you’ll learn how to create a design system that’s both flexible and scalable. By the end, you’ll not only have ...

One of the more interesting aspects of CSS 3 is the new Flexible Box model spec which ... our lives—from culture to business, science to design. The breakthroughs and innovations that we uncover ...