/* const { styleClass } = require('../../utils');

module.exports = (root, opts) => {
    const zIndex = {
        'z-auto': 'auto',
        'z-0': '0',
        'z-1': '1',
        'z-2': '2',
        'z-3': '3',
        'z-4': '4',
        'z-5': '5'
    };

    styleClass('z-index', zIndex, root, opts, true);
};
 */