Reply To: is recommended using css Flexbox now for web projects?

[Alex Zaworski]

It depends on what browsers you need to support. IE9 (and lower) does not support flexbox, so you’ll either need to have fallbacks or just allow the layout to be broken in those browsers.

The site I maintain supports IE9 but I’ve still used flexbox in a few places and then used display:block as a fallback (which in my case is just a single-column layout).