public static function cssFile($url, $options = [])
{
if (!isset($options['rel'])) {
$options['rel'] = 'stylesheet';
}
$options['href'] = Url::to($url);
if (isset($options['condition'])) {
$condition = $options['condition'];
unset($options['condition']);
return self::wrapIntoCondition(static::tag('link', '', $options), $condition);
} elseif (isset($options['noscript']) && $options['noscript'] === true) {
unset($options['noscript']);
return '<noscript>' . static::tag('link', '', $options) . '</noscript>';
} else {
return static::tag('link', '', $options);
}
}