<?php

namespace Google\Web_Stories_Dependencies\AmpProject\Html;

/**
 * Interface with constants for the different "at" rules.
 *
 * @package ampproject/amp-toolbox
 */
interface AtRule
{
    const _MOZ_DOCUMENT = '-moz-document';
    const CHARSET = 'charset';
    const COUNTER_STYLE = 'counter-style';
    const DOCUMENT = 'document';
    const FONT_FACE = 'font-face';
    const FONT_FEATURE_VALUES = 'font-feature-values';
    const IMPORT = 'import';
    const KEYFRAMES = 'keyframes';
    const MEDIA = 'media';
    const NAMESPACE_ = 'namespace';
    const PAGE = 'page';
    const PROPERTY = 'property';
    const SUPPORTS = 'supports';
    const VIEWPORT = 'viewport';
}
