Kilotest: Diagnoses of CSS invalid
violation by HTML element 0 on Prometheus page
Here is how tools diagnose the CSS invalid
issue for HTML element 0 of the Prometheus page.
Basics
- About the
CSS invalid
issue- Why it matters: Document cannot be properly displayed
- Priority: high
- Related WCAG standard: 4.1
- About the Prometheus page
- URL:
https://www.joinprometheus.org/ - Tested on 2026-04-07 at 19:19
- URL:
- About HTML element 0
- Tag name:
HTML - Text: [not applicable]
- Start tag:
<html lang="en" style="scroll-padding-top: 0px;"> - XPath:
/html - Bounding box: x = 0, y = 0, width = 1920, height = 1080
- Tag name:
Diagnoses
- CSS: Unknown pseudo-element or pseudo-class :active-view-transition
Tool: Html Checker API (World Wide Web Consortium)
- CSS: view-transition-name: Property view-transition-name doesn't exist.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Unknown pseudo-element or pseudo-class :active-view-transition
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Unknown pseudo-element or pseudo-class :active-view-transition
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Unknown pseudo-element or pseudo-class :active-view-transition
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Unknown pseudo-element or pseudo-class ::view-transition.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Unknown pseudo-element or pseudo-class :active-view-transition
Tool: Html Checker API (World Wide Web Consortium)
- CSS: view-transition-name: Property view-transition-name doesn't exist.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Unknown pseudo-element or pseudo-class :active-view-transition
Tool: Html Checker API (World Wide Web Consortium)
- CSS: view-transition-name: Property view-transition-name doesn't exist.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Unknown pseudo-element or pseudo-class :active-view-transition
Tool: Html Checker API (World Wide Web Consortium)
- CSS: view-transition-name: Property view-transition-name doesn't exist.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Unknown pseudo-element or pseudo-class :active-view-transition
Tool: Html Checker API (World Wide Web Consortium)
- CSS: view-transition-name: Property view-transition-name doesn't exist.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Unknown pseudo-element or pseudo-class :active-view-transition
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Unknown pseudo-element or pseudo-class :active-view-transition
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Unknown pseudo-element or pseudo-class :active-view-transition
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Unknown pseudo-element or pseudo-class :active-view-transition-type
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Unknown pseudo-element or pseudo-class :active-view-transition-type
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Unknown pseudo-element or pseudo-class :active-view-transition-type
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Unknown pseudo-element or pseudo-class :active-view-transition-type
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Unknown pseudo-element or pseudo-class :active-view-transition-type
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Unknown pseudo-element or pseudo-class :active-view-transition-type
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: stroke-color: Property stroke-color doesn't exist.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: container-type: Property container-type doesn't exist.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: --one-unit: Unknown dimension.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: mix-blend-mode: plus-lighter is not a mix-blend-mode value.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Unknown pseudo-element or pseudo-class :active-view-transition
Tool: Html Checker API (World Wide Web Consortium)
- CSS: view-transition-name: Property view-transition-name doesn't exist.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: vector-effect: Property vector-effect doesn't exist.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: stroke-color: Property stroke-color doesn't exist.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: text-transform: var(--textTransform, "none") is not a text-transform value.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: color: var(--txt, var(--color_15, color_15)) is not a valid color 3 or 6 hexadecimals numbers.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: color: var(--txth, var(--color_14, color_14)) is not a valid color 3 or 6 hexadecimals numbers.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: color: var(--txts, var(--color_14, color_14)) is not a valid color 3 or 6 hexadecimals numbers.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: background-color: var(--bgDrop, var(--color_11, color_11)) is not a valid color 3 or 6 hexadecimals numbers.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: background-color: var(--bg, var(--color_11, color_11)) is not a valid color 3 or 6 hexadecimals numbers.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: border-top: var(--brd, var(--color_15, color_15)) is not a valid color 3 or 6 hexadecimals numbers.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: opacity: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: background-color: var(--bgctr, var(--color_11, color_11)) is not a valid color 3 or 6 hexadecimals numbers.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: background-color: var(--bg, var(--color_11, color_11)) is not a valid color 3 or 6 hexadecimals numbers.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: opacity: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: opacity: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: fill: var(--arrowColor, var(--color_12, color_12)) is not a valid color 3 or 6 hexadecimals numbers.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: stroke: var(--arrowColor, var(--color_12, color_12)) is not a valid color 3 or 6 hexadecimals numbers.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: background-color: var(--dotsColor, var(--color_12, color_12)) is not a valid color 3 or 6 hexadecimals numbers.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: background-color: var(--dotsSelectedColor, var(--color_11, color_11)) is not a valid color 3 or 6 hexadecimals numbers.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: background-color: var(--dotsColor, var(--color_12, color_12)) is not a valid color 3 or 6 hexadecimals numbers.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: border: var(--dotsColor, var(--color_12, color_12)) is not a valid color 3 or 6 hexadecimals numbers.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: fill: var(--arrowColor, var(--color_12, color_12)) is not a valid color 3 or 6 hexadecimals numbers.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: background-color: var(--dotsColor, var(--color_12, color_12)) is not a valid color 3 or 6 hexadecimals numbers.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: border: var(--dotsColor, var(--color_12, color_12)) is not a valid color 3 or 6 hexadecimals numbers.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: fill: var(--arrowContainerColor, var(--color_11, color_11)) is not a valid color 3 or 6 hexadecimals numbers.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: fill: var(--arrowColor, var(--color_12, color_12)) is not a valid color 3 or 6 hexadecimals numbers.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: background-color: var(--dotsColor, var(--color_12, color_12)) is not a valid color 3 or 6 hexadecimals numbers.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: background-color: var(--dotsSelectedColor, var(--color_11, color_11)) is not a valid color 3 or 6 hexadecimals numbers.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: will-change: var(--corners-overflow-fix-will-change, initial) is not a will-change value.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: border: var(--brd, var(--color_11, color_11)) is not a valid color 3 or 6 hexadecimals numbers.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: background-color: var(--wix-ui-tpa-text-field-main-background-color, var(--wst-primary-background-color-rgb, transparent)) is not a valid color 3 or 6 hexadecimals numbers.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: background-color: var(--wix-ui-tpa-text-field-hover-background-color-rgb, var(--wix-ui-tpa-text-field-main-background-color-rgb, transparent)) is not a valid color 3 or 6 hexadecimals numbers.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: --wix-ui-tpa-text-field-readonly-border-color: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: --wix-ui-tpa-text-field-readonly-border-color-rgb: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: --wix-ui-tpa-text-field-readonly-border-color-opacity: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: -webkit-box-shadow: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: -webkit-box-shadow: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: color: from is not a valid color 3 or 6 hexadecimals numbers.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: color: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: container-type: Property container-type doesn't exist.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: color: from is not a valid color 3 or 6 hexadecimals numbers.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: color: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Unknown pseudo-element or pseudo-class :antialiased
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Unknown pseudo-element or pseudo-class :grayscale
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)
- CSS: Parse Error.
Tool: Html Checker API (World Wide Web Consortium)