i think the para <p> may not have margin somehow.
while using obsidian, press CTRL-SHIFT-I (option-cmd-i for mac) to bring up the developer window. use the pointer (in red box below) and select on any of the paragraph. look at the box model there (in the picture, the one with margin, border and padding).
if u dont see any margin, like some css snippet make it so.
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