It's worth pointing out that this style rule itself is optional, which is to say they're not making a recommendation here, just providing an example of what app

It's worth pointing out that this style rule itself is optional, which is to say they're not making a recommendation here, just providing an example of what applying the rule would look like. It carries the same weight as, say, the optional rule about grouping CSS sections and including a section comment[1]. [1] https://google.github.io/styleguide/htmlcssguide.xml?showone=Section_Comments#Section_Comments https://google.github.io/styleguide/htmlcssguide.xml?showone...