Are H1,H2,H3,H4 tags block or inline elements?

Question

Is it correct HTML to change the color of text inside a H1, H2, H3 or H4 element? Are they block level?

For example

Answer 1

Yes This is the correct way, If you want to use inline css. Otherwise make a class say

<h1 class="title"><span>#500</span> Hello world</h1>

Now Its Css is:

h1.title span{
color:#ABABAB;
}

Again yes h1 to h6 is a block level.