You know what a parapgraph is. Here’s an example of paragraphs with a heading.

<h3>We’re building a better Internet</h3>

<p>Our mission is to ensure the Internet is a global public resource, open and
    accessible to all. An Internet that truly puts people first, where individuals
    can shape their own experience and are empowered, safe and independent.</p>

<p>At Mozilla, we’re a global community of technologists, thinkers and builders
    working together to keep the Internet alive and accessible, so people worldwide
    can be informed contributors and creators of the Web. We believe this act of
    human collaboration across an open platform is essential to individual growth
    and our collective future.</p>