The tinro is highly declarative, very tiny (~4.5 Kb (1.9 Kb gzipped)), dependency free router for Svelte's web applications.

On a desktop, websites have the space to show the full menu, but on a mobile device that space isn't there, and you want to hide the menu behind a toggle (like a hamburger icon) and show it when people click that toggle. How do you offer both in an accessible way that keeps your HTML simple, without duplicating your menu? That's what the perfect responsive menu does.

This site teaches the CSS fundamentals that are used in any website's layout.