This is an example of normal text in a HTML page. The peculiarity of this text is the presence of so called "HTML MARKERS" which can modify part of the text in many manners, for instance bold or italic, insert links and much more.
It's also easy to define a bullet point list in the text, e.g. a list of names:
John
Mary
Philip
Elizabeth
Jennifer
Deep understanding of HTML behavior comes from a careful comparison between the HTML page, which is flat text, such as a .txt document, and the rendering obtained by looking at the page by means of a browser like Chrome, Firefox etc. In order to inspect the HTML text of the page just right clic and view page source (CTL-U in Chrome).
Google Sites does not use all the HTML features, but allows users to write a well-structured HTML page without any knowledge of HTML markers, just by means of a user interface as simple as a word processor.
The resulting web pages are responsive, i.e. suitable for both desktop, tablet and mobile screen. Try it!