Most of the time, Haml is pretty awesome. One of the cases where it's not so awesome is around multiline mixed Ruby/HTML. For example, when trying to create a timer on the screen:
Because of reasons, Haml decides to add extra whitespace around each of the span tags. Sometimes this is desirable, but sometimes you want to remove the whitespace/extra space around Haml tags.
As usual, there is a quick fix, in this case the '>' character: