Major Headline: Something Happened Today
This is the hook. It gives the reader the most important information right away so they know what the article is about without needing to expand it.
Here is the rest of the story. You can put as many paragraphs here as you need. When the user clicks the read more button, this section slides down and becomes visible.
It's completely responsive and keeps the user on the exact same page, maintaining that "single URL" newspaper feel.