[Vondry]

Summary

Migrates all px and em units in seo.css to rem for improved scalability and accessibility. All rendered dimensions remain identical under the default 16px root font size.

Conversion table

Property	Original	Converted
padding	12px	0.75rem
font-size	14px	0.875rem
font-size	20px	1.25rem
margin-bottom	3px	0.1875rem
margin-left	2px	0.125rem
border-*	4px	0.25rem
padding-right	16.5px	1.03125rem
padding-top	0px	0
height	1.3em	1.625rem

Why

• Accessibility — rem units respect the user's preferred browser font size, improving support for users who increase their default text size.
• Consistency — all sizing now uses a single relative unit (rem), making the stylesheet easier to maintain and reason about.
• No visual change — this is a pure refactor; rendered dimensions remain unchanged with the default 16px root font size.

Testing