HTML

Structure of content on the web

  • Web APIs

    Interfaces for building web applications

  • Learn
  • HTTP Observatory

    Scan a website for free

  • Web APIs
  • CSSVariableReferenceValue
  • Constructor
    1. CSS
    2. CSSGroupingRule
    3. CSSLayerBlockRule
    4. CSSPageDescriptors
    5. CSSRuleList
    6. CSSStyleSheet
    7. MediaQueryList
    8. Learn more
    9. See full compatibility

    • The fallback read-only property of the CSSUnparsedValue.

    Specifications

    Specification
    Product help
  • The fallback read-only property of the\nCSSUnparsedValue.

    "}},{"type":"specifications","value":{"id":"specifications","title":"Specifications","isH3":false,"specifications":[{"bcdSpecificationURL":"https://drafts.css-houdini.org/css-typed-om/#dom-cssvariablereferencevalue-fallback","title":"CSS Typed OM Level 1"}],"query":"api.CSSVariableReferenceValue.fallback"}},{"type":"browser_compatibility","value":{"id":"browser_compatibility","title":"Browser compatibility","isH3":false,"query":"api.CSSVariableReferenceValue.fallback"}}],"isActive":true,"isMarkdown":true,"isTranslated":false,"locale":"en-US","mdn_url":"/en-US/docs/Web/API/CSSVariableReferenceValue","title":"CSSVariableReferenceValue"},{"uri":"/en-US/docs/Web/API/CSSVariableReferenceValue/CSSVariableReferenceValue\">CSSVariableReferenceValue()
  • Instance properties
    1. CSSConditionRule
    2. CSSImportRule
    3. CSSLayerStatementRule
    4. CSSPageRule
    5. CSSStartingStyleRule
    6. CSSSupportsRule
    7. Screen
    8. StyleSheetList
    • ","source":{"folder":"en-us/web/api/cssvariablereferencevalue/fallback","github_url":"https://github.com/mdn/content/blob/main/files/en-us/web/api/cssvariablereferencevalue/fallback/index.md","last_commit_url":"https://github.com/mdn/content/commit/8dac6c62fc3cee2de82960d4dd9d9be16a3a1761","filename":"index.md"},"summary":"The fallback read-only property of the\nCSSVariableReferenceValue interface returns the custom property fallback value of the CSSVariableReferenceValue.","title":"CSSVariableReferenceValue: fallback property","toc":[{"text":"Value","id":"value"},{"text":"Specifications","id":"specifications"},{"text":"Browser compatibility","id":"browser_compatibility"}],"baseline":{"baseline":false,"support":{"chrome":"66","chrome_android":"66","edge":"79","safari":"16.4","safari_ios":"16.4"}},"browserCompat":["api.CSSVariableReferenceValue.fallback"],"pageType":"web-api-instance-property"}}

    Follow Lee on X/Twitter - Father, Husband, Serial builder creating AI, crypto, games & web tools. We are friends :) AI Will Come To Life!

    Check out: eBank.nz (Art Generator) | Netwrck.com (AI Tools) | Text-Generator.io (AI API) | BitBank.nz (Crypto AI) | ReadingTime (Kids Reading) | RewordGame | BigMultiplayerChess | WebFiddle | How.nz | Helix AI Assistant