This is a header. Headers go between tags ranging from h1 to h5, with h1 being the largest font, and h5 being the smallest.

This is a paragraph. You put paragraphs between p tags. You can make font bold or italic.

this is an image. The src is the path to your image.

This is a link. The part in quotes is the path to your html file, and then the part between that and the end tag will be the link's text.

You can tweak how your site looks in the style.css doc, or make a new .css doc for pages that should have a different look. you then replace /style.css in the link in the header with your new .css doc on those pages. Or you can use style tags in the header of your html page. The simplest changes in css are in the body element, background-color: and color:

For example: