From http://portability.wikia.com/wiki/Portability_Checklist
"Avoid using style=’clear: both’ by itself or via Template:Clear, Template:Clr, or
. These create spacing issues."
I've seen that some formatting tricks for desktop view don't look so good in mobile view, e.g. half line height spacing between paragraphs. I don't want to get rid of them from desktop view, however. Is there any code we can use that will be like "ignore this/substitute with a normal line break if in mobile view"?