iframe and transparency exploration
Adding JavaScript
How to create a framework-agnostic JavaScript plugin - LogRocket Blog
javascript - Appending a gradient after apending svg chart - Stack Overflow
javascript - How do I see what JS is changing style to my elements in Chrome dev tools or Firefox dev tools? - Stack Overflow
HTML | DOM Style opacity Property - GeeksforGeeks
javascript - Vanilla JS - SetAttribute to All Elements - Stack Overflow
Two Hour Living Coding Session - building a video player for SCA 2 - YouTube
Lots of Ways to Use Math.random() in JavaScript | CSS-Tricks - CSS-Tricks
Create a Nice, Lightweight JavaScript Tooltip - WebFX
Build a Simple Game in Vanilla JS With the Drag and Drop API | Jscrambler Blog
The Best Cool JavaScript Animations to Use on Your Website
google-maps-v3-opacity-control/map.htm at master · gavinharriss/google-maps-v3-opacity-control · GitHub
Customizing Player Appearance
JavaScript Library Showdown - ppt download
Power under the hood: Playing with JavaScript in the browser console
Staggered Animations with CSS Custom Properties – Cloud Four
