Use CSS code to style your site headers with borders and other design elements. HTML and CSS use a box model, which means that page elements include margins, padding, background colors and ...

How to Get the Navigation Bar Under the Header in CSS. When you're coding a new website layout, it sometimes can be tricky to get the different elements in the exact positions you want.

Functional CSS vs. semantic CSS To get a sense of the difference, consider a header element. Let’s say we want to make it bold and red.