Quick navigation links

Learning HTML/CSS/JS

• MDN Web Docs (HTML/CSS/JS references and guides)
Has detailed information about nearly every HTML & CSS element. Has information about each elements' browser compatibility.

MDN also hosts some CSS tools/generators, which are perfectionated cause it's made specifically for web developers:
color picker + opacity _ box shadow generator _ border image generator _ border radius generator
• W3Schools (HTML/CSS/JS references and guides)
I see this as alternative to MDN Web Docs. It has less depth, but maybe that makes it more beginner-friendly?

Web-dev tools and generators

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Graphic design & art tools

• Ezgif.com (Online GIF frames editor, optimizer, and file converter)
It has various tools such as file format converters, editing the frames of a GIF, optimizing files, cropping and resizing files, adding simple visual effects, rotate images, etc etc.
• pookatoo.com (glittery-fantasy fonts as text GIFs)
Has cool overstylized old-web type of fonts. It's saved in GIF format, and it lets you choose between sizes and some visual effects.
I used the "swamp thing" font for my homepage.

Ready-to-use resources

• Blingify.com (Database with repeating/tile backgrounds)
• Backgrounds Archive (Archive with tileable and other backgrounds)