HTML links are made with the <a> tag and the href attribute. So you would make a link by doing something like <a href=”somehyperlink”> something something</a>.  The text outside of the tags is what you can see of the hyperlink. You can change the default color of the link using CSS. You can also change here the link will be opened by using the target attribute You can make images into a link, and there are bookmark links that allow you to go to a specific part of the web page. Often you will put the links into navigation menues and things.

For more specific information I would suggest going to the link below which is where I found most of this information:
https://www.w3schools.com/html/html_links.asp