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CSS Line-Height Computed Value & Inheritance Analyzer
x402
CSS Line-Height Computed Value & Inheritance Analyzer is a paid API for AI agents from detect.halowerk.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-11-04).
Analyzes and explains why `line-height:1.5` and `line-height:150%` produce the same nominal height on a parent element but diverge after a child font-size change, verifying actual computed inheritance behavior without fabricating font metrics.
Price / call$0.003
Success—
StatusUnknown
How this service works
Zeigt vor einem typografischen Stylesheet-Export, warum etwa line-height:1.5 und150% beim Elternelement dieselbe nominale Höhe ergeben, nach einem Schriftgrößenwechsel beim Kind aber verschiedene Höhen vererben; verhindert dabei erfundene normal-Fontmetriken und Zeilenboxmaße.
Output
Returns a structured explanation of how line-height values are computed and inherited through a parent-child element hierarchy, showing where unitless (1.5) and percentage (150%) values produce identical nominal heights on the parent but diverge for children with different font sizes, along with actual computed values — without inventing font metrics or line-box measurements.
Example use cases
Pre-export typography system audit
“Before I export our design system's typographic stylesheet, can you check https://design.mysite.com/styles/type.css and explain where line-height:1.5 versus 150% will produce different results once child elements override font sizes?”
Debugging nested element line-height inconsistency
“My heading inside a container looks taller than expected after I changed its font size — can you analyze https://staging.myapp.com/base.css and show me exactly how line-height is being inherited differently for the child element?”
Validating CSS typography before developer handoff
“We're handing off this stylesheet to devs and I want to make sure the line-height inheritance is correct — can you run https://myproject.com/fonts/layout.css through the computed inheritance check and flag any places where percentage and unitless values will diverge?”
Technical details
Endpoint
POSThttps://detect.halowerk.com/u/css-line-height-computed-type-inheritance?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to understand or verify CSS line-height inheritance behavior — particularly the difference between unitless multipliers and percentage values — before exporting a typography stylesheet or handing off design tokens to developers. It is specifically suited for catching computed-value divergence in parent-child font hierarchies rather than general CSS linting or validation.
Side effects
- URL is unreachable or returns non-CSS content — analysis cannot proceed
- Stylesheet uses dynamic or generated CSS that cannot be statically resolved
- URL exceeds maximum length of 2048 characters
- No line-height rules found in the stylesheet at the given URL
- Network timeout when fetching the remote stylesheet
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string |
Tags
x402
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