Its not horribly broken, IE11/10 is well supported with prefixes & past flexbox-spec properties. Autoprefixer does all the work there. For IE9/8 you could rely

Its not horribly broken, IE11/10 is well supported with prefixes & past flexbox-spec properties. Autoprefixer does all the work there. For IE9/8 you could rely on polyfills like https://github.com/10up/flexibility https://github.com/10up/flexibility Listened to @_lemonmade & @snookca at a recent conference talk about how they're using Flexbox across the Shopify platform and there is no reason why other far-reaching platforms shouldn't make the switch today.