# easy-invoice/2.4.4/vendor/sabberworm/php-css-parser/src/Property/AtRule.php

Easy Invoice – Invoice Generator, PDF Quotes & Payments, version 2.4.4. 39 lines.

- Page: https://pluginprobe.com/plugins/easy-invoice/2.4.4/code/vendor/sabberworm/php-css-parser/src/Property/AtRule.php
- Raw: https://pluginprobe.com/plugins/easy-invoice/2.4.4/raw/vendor/sabberworm/php-css-parser/src/Property/AtRule.php
- Modified: 2026-09-15T12:31:20+00:00

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```php
<?php

namespace Sabberworm\CSS\Property;

use Sabberworm\CSS\Comment\Commentable;
use Sabberworm\CSS\Renderable;

interface AtRule extends Renderable, Commentable
{
    /**
     * Since there are more set rules than block rules,
     * we’re whitelisting the block rules and have anything else be treated as a set rule.
     *
     * @var string
     *
     * @internal since 8.5.2
     */
    const BLOCK_RULES = 'media/document/supports/region-style/font-feature-values';

    /**
     * … and more font-specific ones (to be used inside font-feature-values)
     *
     * @var string
     *
     * @internal since 8.5.2
     */
    const SET_RULES = 'font-face/counter-style/page/swash/styleset/annotation';

    /**
     * @return string|null
     */
    public function atRuleName();

    /**
     * @return string|null
     */
    public function atRuleArgs();
}

```