Question

I was just looking at my CSS and the h1 tag is defined like this:

h1 { .... }

When everything else either has an id “#” or a “.” class preceding it. What is the reason header tags don’t need this? Have I infact made a mistake and they do need one?

Answer 1

This means that all occurences of h1 will share the same style. Similarly, you can have a style defined for any other element, e.g.:

p { font-family: Helvetica; }

That means all p tags will use the Helvetica font.

Note that it’s also a best practice to have just one h1 element in a page.

You can find a brief overview what different types of selectors mean here.