As we discussed in our first lecture looking at HTML code, all HTML tags have a default set of visual rules defined by the browser. A significant part of Web design is redefining those rules so those HTML tags look good, even damn good, in our sites.
The example we used in class was to look at the common paragraph, or p tag. Paragraphs unless told otherwise, are black, left aligned, 100% wide (as defined by their enclosing element), have a margin in between them, are displayed in Times or Times New Roman, and are 16 pixels (1 em) tall.
It is quite easy to write the selector for an HTML – just write the name of the tag:
p
The above tag will control all paragraphs on the page. To be honest, you will likely find it much more practical to use contextual selectors to redefine most HTML tags.