There are several posts out there that ask this question--this particular post has an answer. There's no indication it is a correct answer, but hopefully it will be useful in the meantime (if you have access to editing your theme). I too want to know this answer as the alignment I choose is ignored, but I always assumed it has something to do with my custom theme, which I don't have editing access to.
Courses and course formats
Left indentation of Course summary in course page
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