We prefer if the reason you are writing is because you have something you very much want to share. You have a deep knowledge on this topic. You are excited about it. You're ready to tell people about it.
Here's our official page about guest writing. It's an important read:
What can a blog post be?
How to Make an AVIF Image
Web Words Confusion Busting: Web Sockets, Web Workers, Service Workers
Complete Guide to Choosing an SVG Icon System
Different Image Hosting Setups
Showcase of Classy Styled Scrollbars
How to Process Your Sass Files
The Real Desks of Web Development
Roundup of Nicely-Designed Article Pages
So you want to post some slides on the web?
Ajax these days...
The "Move Whole Site Over" Checkout Flow
Animating in React (The Many Ways!)
Extreme Checkbox Hack Demos
Great Web Books You Can Read for Free Online
How do you manage your browser tabs?
What's the best conference talk you ever saw?
Why does the dashed attribute selector exist?
What you build is more important than how you build it
What keyboard commands can you actually use on the web?
Character Reference Sites
Aligning a Grid of Icons
Dealing with a Long Word in a Title on Mobile
The Dumbest CSS Mistakes
The Most Compelling Design System Frameworks
The Double Emphasis Thing
The Best Books on CSS and Web Design
Formatting for Reader Views
One box with no gaps, or multiple boxes with gaps
The debate between www and no-www