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Developer tools · #ie10
Learn how to implement responsive layouts in Internet Explorer 10 using the legacy -ms-flexbox specification, including property mapping and alignment strategies.
When you need responsive layouts in legacy environments, IE10 still matters. This guide shows how to combine standard Flexbox, -ms- prefixed rules, and a float fallback to keep designs functional across modern browsers and IE10, plus a quick validation checklist.
IE10 supports Flexbox — but only the abandoned 2012 draft syntax behind -ms- prefixes. Here's what that syntax looks like, why you shouldn't hand-write it, and why a float-based fallback is usually the smarter call.
Goal Ensure that after applying a DOM schema change (such as adding or removing custom data‑attributes) and then rolling back those changes, every intermediate mutation is captured so the rollback can restore the exact original state without leaving stray nodes or attributes. Constraints and uncertainty Internet Explorer 10 provides the MutationObserver API,