Css vs Bootstrap

I'm sorry, but there isn't one best way of doing things.

Bootstrap is nice, and offers a lot, but modern CSS can do a lot of these things and you don't have to download the Bootstrap JS/CSS code. Then again, Bootstrap is a somewhat easier to use, and a safer option, because it works more consistent on different platforms.

I think you can say that if you want a lean website, and you can invest the time to check compatibility, then you could go for pure CSS. Otherwise using something like Bootstrap is still, in 2026, an easier option.

There's also the more recent webawesome.com project. It has a more modern (code) design, which means loading less things you're not using. It could be a good middle-ground between pure CSS and Bootstrap.

Then again, whatever you use, you can always use pure CSS no matter what framework you use.

In my opinion, the best approach is to use a framework like Bootstrap for a solid starting point, but add your own CSS (Flexbox/Grid + media queries) so the layout adapts to your content, not just Bootstrap’s predefined device breakpoints.

Bootstrap helps you build something responsive quickly, but its breakpoints are only general ranges and won’t match every design. You can customize or add breakpoints, but the key idea remains: use breakpoints where your layout actually starts to break.

Example: An image viewer and a description might be stacked on small screens, but shown side-by-side on wide screens. Choose the breakpoint where the stacked layout becomes uncomfortable—not where a device category begins.

This content-driven approach takes more time to design and test. Bootstrap is often “good enough” and faster; custom CSS gives you more flexibility when you need it.