"h" tags are used for titles and subtitles. They range from h1 to h6.

"p" tags are used for sentences and paragraphs. They create a line-break every time they're used.

"pre" tags are used for preformatted text. They'll retain spacing of the source text when they're used.

This is an image tag used for adding images to the screen.

This is an unordered list.
• dog
• cat
• mouse
• bird

This is an ordered list.
1. dog
2. cat
3. mouse
4. bird