In semantic CSS, we are encouraged to create a class that describes the role the class plays in our app, say app-header ... HTML body. Now turn your attention to the page body. A common responsive ...

The likely problems are incorrect ordering in HTML ... create a hard line return after the header and center whatever is in it:display:block; width:100%; text-align:center; Locate the section of ...

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 ...