Kilotest: Diagnoses of CSS invalid
violation by HTML element 0 on DubBot page
Basics
About the DubBot page
- URL: https://dubbot.com/
- Tested 13 days ago by job
8g6on 2026-07-07 at 20:33
About HTML element 0
- Tag name:
HTML - Text: [not applicable]
- Start tag:
<html xmlns="http://www.w3.org/1999/xhtml" lang="en-US" translate="no"> - XPath:
/html - Bounding box: x = 0, y = 0, width = 1920, height = 5471
About the CSS invalid
issue
- Why it matters: Document cannot be properly displayed
- Priority: high
- Related WCAG standard: 4.1
Diagnoses
Here is how rule engines diagnose the CSS invalid
issue for HTML element 0 of the DubBot page.
- CSS: background: undefined is not a background-color value.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: fill: undefined is not a color value.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: fill: undefined is not a color value.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: fill: undefined is not a color value.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: background: undefined is not a background-color value.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: color: undefined is not a color value.
Tool: Html Checker API (World Wide Web Consortium)