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CSS Text Decoration Box Propagation Detector
x402
CSS Text Decoration Box Propagation Detector 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).
Determines which declared text nodes inherit underline/decoration lines from ancestor elements and where box boundaries terminate that propagation, before an HTML/CSS exporter converts decorations into local attributes.
Price / call$0.003
Success—
StatusUnknown
How this service works
Ermittelt, welche deklarierten Textknoten ihre Linien von Vorfahren erhalten und an welchen Boxgrenzen die Bindung endet, bevor ein HTML/CSS-Exporter Unterstreichungen in lokale Attribute umwandelt.
Output
A structured map identifying which declared text nodes receive CSS text-decoration lines via ancestor inheritance, the specific box boundaries at which propagation terminates, and the inheritance chain leading to each decoration — enabling an exporter to safely convert ancestor-declared decorations into local inline attributes without losing or duplicating styling.
Example use cases
Pre-export decoration audit for newsletter
“Before we convert our newsletter template at https://news.example.com/template to inline styles, can you detect which text nodes are picking up underline decorations from ancestor CSS and where those decorations stop propagating at box boundaries?”
Debug unexpected underlines in CMS output
“Some text in our CMS-rendered page at https://cms.example.com/post/42 is getting underlines we didn't explicitly set — can you trace which elements are inheriting text-decoration from ancestors and where the propagation ends?”
Validate decoration inheritance before email rendering
“We're exporting an HTML email from https://builder.example.com/email/draft to local inline attributes — can you first map out which text nodes receive inherited CSS text-decoration lines and at which box boundaries the propagation terminates?”
Technical details
Endpoint
POSThttps://detect.halowerk.com/u/css-text-decoration-box-propagation?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to understand CSS text-decoration inheritance across a DOM tree before performing a conversion from stylesheet-based to inline attribute-based styling — particularly for HTML/CSS exporters, email builders, or static-site generators that must flatten inherited decorations. It is specifically designed for the propagation analysis step, not general CSS linting or full style auditing.
Side effects
- Invalid or unreachable URL returns an error indicating the document could not be fetched
- Malformed HTML/CSS may produce incomplete propagation maps with missing nodes
- URLs exceeding 2048 characters are rejected with a validation error
- Pages with heavy JavaScript-rendered styles may not reflect dynamic decoration states
- Cross-origin restricted pages may prevent full DOM/CSSOM inspection
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string |
Tags
x402
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