Heading level 1

With some text under it...

Heading level 2

With some text under it...

Heading level 3

With some text under it...

Heading level 4

With some text under it...

This is a paragraph, created with a new line added on top and bottom. Never use br to create a paragraph, only use br when moving to the new line.

This is how you make a new line, just one br tag:
This is how you make bold, italic, both text
Here is a link

This is a block quote

1. First item
2. Second item
3. Third item
   1. Indented item
   2. Indented item
4. Fourth item

• First item
• Second item
• Third item
  • Indented item
  • Indented item
• Fourth item