This is paragraph 1.
This is paragraph 2.
This is paragraph 3.
Notice that the tags for these three paragraphs are all generic <p> tags.
I've instructed the web browser in the style sheet contained in the <head>
tag that all the contents of <p> tags should be white.
Likewise, note that the color of the <h1> tag was set to yellow and the
background set to red in the <head> tag.
There is no inline CSS or HTML formatting of individual tags in this web page.