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

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

"pre" tags are used for pre-formatted text. they will retain the spacing of the source text when they are used.

This is an image tag, it's used for adding images to the screen

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

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