Pião da Casa Própria com CSS e JavaScript
Publicado
A clone of the famous snake game before smartphones were a thing.
You can play it in the live-version here

Create an animated clock with different technologies, like with CSS and with SVG + JavaScript
Live version: https://multiple-clocks.vercel.app/

The idea was to create a tiny framework based on css flex-box to manage grids without flooding the html.
Once one defines a container everything inside it is turn into a column, greatly reducing the amount of tags needed.
It is published as an npm package here and can be installed as:
1npm i @webdev-tools/css-flex-layout
Usage:
1<section class="fl-3-cols-container">
2 <aside>001</aside>
3 <aside>002</aside>
4 <aside>003</aside>
5 <!-- breaks to next line -->
6 <aside>004</aside>
7 <aside>005</aside>
8 <aside>006</aside>
9 <!-- breaks to next line -->
10 <aside>007</aside>
11 <!-- alone on the last line -->
12</section>
Thanks for HyperPlexed for the inspirational video