// GENERATED CONTENT - DO NOT EDIT
// Content was automatically extracted by Reffy into webref
// (https://github.com/w3c/webref)
// Source: CSS Device Adaptation Module Level 1 (https://drafts.csswg.org/css-device-adapt/)

partial interface CSSRule {
    const unsigned short VIEWPORT_RULE = 15;
};

[Exposed=Window]
interface CSSViewportRule : CSSRule {
    readonly attribute CSSStyleDeclaration style;
};