Front-end development is a tricky beast. It’s not difficult to learn, but it’s quite difficult to master. There are just too many things that need to be considered; too many tweaks that might be necessary here and there; too many details to make everything just right.
View Demo Download Zip Using a relative unit such as EM is a great way to maintain the vertical rhythm of a web page when a user resizes text in their browser. Constantly reaching for a calculator to compute the correct EM value to use every time you need to is also a great way to drive yourself mad.