Cirriculums to own PC

I completed some cirriculums.
For example:
Learn HTML by Building a Cat Photo App
Learn Basic CSS by Building a Cafe Menu
Learn CSS Colors by Building a Set of Colored Markers
Can I upload them to my PC?

For the beta version?

I haven’t really looked much at the beta version but don’t they end with a complete page at the final step that you can just copy? If so you can create the HTML/CSS files locally and just paste the final code. If it is a page with CSS you have to link to the CSS file in the HTML file.

<link rel="stylesheet" href="styles.css" />