A 'h' tag is used for titles and important subtitles. There are 6 versions of the 'h' tag. h1-h6

This is a paragraph tag it is used for writing sentences and paragraphs. Paragraph tags automatically insert a linebreak everytime they are used.

This is a span tag. It's also used for writing sentences and paragraphs, however span tags do not insert a linebreak evertime they are used.

This is a pre tag. It's used to display pre-formatted text. Pre tags will keep the font family of the source of the text.

An 'a' tag is a link to a different web page.

this is an image tag

Here's how to make an unorderd list:

First thing
Second thing
Third thing

Here's how to make an ordered list:

First thing
Second thing
Third thing

Div tags are used as dividers. You used them to seperate page/document section.

This is a center tag. It is used to center contend on the webpage. This is a marquee tag. It's used to make text move across the screen in an infinite loop