Why Mobile Matters
More than 60% of web traffic comes from mobile devices. If your blog is broken on phones, you are losing readers.
Common Issues
The most frequent problems are sidebar rendering above content, code blocks overflowing the viewport, and text not wrapping properly.
Fix Flex Layout Order
When using flex-direction: column on mobile, items stack in DOM order. Use order to control which appears first.
Fix Code Overflow
Add overflow-x: auto to pre blocks and word-break: break-word to inline code to prevent layout breakage on small screens.