Mobile first approach using Flexbox

What are you most proud of, and what would you do differently next time?

Learned about

• semantic HTML
• mobile first development approach
• CSS Flexbox.

What challenges did you encounter, and how did you overcome them?

While using Flexbox, some browsers didn't support flex-gap. So, tried to use margins on the element instead. But later figured out that some old versions of those browsers doesn't support that.

What specific areas of your project would you like help with?

I am using media queries for responsiveness. Is there a way to do it without media queries?