Consider writing an entire blog that addresses a topic your industry doesn't want customers to know about to see what kind of traffic you can generate. The goal is to make your page fully optimized, not overbearing. Find natural fits for keyword additions, but don't force them to the point where your content is illegible.
Applying various CSS styles to manage the layout with advanced techniques like CSS Grid, as well as enhancing the overall aesthetics with modern typography and transitions. Overall, this is an engaging way to reinforce and expand your web development skills while producing a functional and attractive interface.
The natural extension is to include interactivity. JavaScript is the best and most popular way to do this. It's definitely worth considering a JavaScript course to level up your skills in that area.