What is LSCSS?
Start here if you need the short explanation before choosing a route.
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Find the CSS decision you need
Search by problem, pattern, or architectural decision. Useful searches include specificity, utilities, state, modifiers, legacy CSS, @scope, Tailwind, tokens, and hacks.
Search the docs
Search for the question you have, not only the page title.
Try terms like specificity, state,
utility, legacy, scope,
or tokens.
Good starting points
Common problems
Why is this selector winning?
Check layers, ownership, and selector intent before increasing specificity.
Utility or component?
Use practical rules when repeated utility stacks start looking suspicious.
Modifier or state?
Separate permanent variants from temporary UI behaviour.
How do I improve legacy CSS?
Contain old styles and improve active work without rewriting everything.
What does bad CSS look like?
Recognise specificity ladders, random values, utility overload, and permanent hacks.
How do I audit a codebase?
Review ownership, tokens, components, state, legacy, hacks, and delivery risk.