When people use preformatted (indented) blocks for quoting material. (It's unreadable on mobile.) The fix? Format any paragraph which begins with a > charact

When people use preformatted (indented) blocks for quoting material. (It's unreadable on mobile.) The fix? Format any paragraph which begins with a > character with left padding and a left border. I would assume the fix is simple, but, looking now, the HTML HN generates is somewhat borked. The first paragraph of my comment is not in a <p> tag, though the remainder are, and all three paragraphs are nested within a single <span>. (A <span> should contain phrasing content, which <p> is not.) Styling paragraphs would probably necessitate fixing this first.