Nope. At least not that I can find, after having tried a few things. If you're working on an FC mod, you can resize and reposition the text box that
all journal entries fit into, but not individually. I also thought maybe you could include a line break in the title and have your whole text as an extended title, but that didn't work either - it just ignores the tags.
However, the esteemed Mr Mudbill made
this tutorial about taking advantage of the journal background image: you could make an image of a newspaper clipping and lay it out however you like. (Only problem is if you want to have translation, in which case you'd need a separate image.)
Which reminds me, I ought to rep Mudbill for that tutorial. Not because it's really advanced, but because it's an ingenious solution that I wouldn't have thought of myself.