Is there a difference between HTML and CSS link codes?
Yes, a huge difference. You’re comparing apples to oranges. HTML is a markup language. It’s what a browser uses to render a page. If you right click on any web page and click ‘view source’ you will see the page’s HTML structure. CSS, on the other hand, works in tandem with HTML to control a page’s look and feel. CSS controls things like font styles, background colors, images and other browser related components. I recommend the two links below for further reading and understanding.