This layout is ideal for creating documentation pages or any website with a fixed-width sidebar for navigation and a flexible content area for displaying information.

In CSS, content that participates in inline layout is called inline-level content. Most text sequences, replaced elements, and generated content are inline-level by default.

The paper overlay effect in CSS can be used to give web content a realistic and engaging appearance, making it suitable for blog posts, portfolios, digital invitations, educational websites, presentations, product showcases, personal blogs, and event websites.

Thomas notes that focus outlines are often seen as a purely technical requirement, but suggests we should treat them as essential design elements that can help create “interfaces that are both beautiful and inclusive”, noting how they are fundamental to an accessible web. Also looks at a multi-colored striped approach, and a proposed native way to handling just that. Plenty of good examples here.