The browser-side implementation achieves 0 JS, resulting in extremely fast access speeds.

Some HTML and CSS features used include:

1. Anti-Spoiler Mode and Mobile Search Box Hidden Display CSS ":checked Pseudo-Class" and "+ Adjacent Sibling Combinator"

2. CSS View Transitions

3. Use the HTML popover attribute for image lightboxes.

4. Use the CSS scroll-timeline Property to Return to Top

5. Image Waterfall layout is a type of Grid layout

6. Use 1px transparent images for visit statistics

7. Disabling Browser-Side JS Execution with Content-Security-Policy