How to customize the dropdown list of the plugin Polylapg?

Please tell me how to customize the dropdown list of the plugin Polylang, without changing the structure of HTML tags (select>option)?
Put the plugin via <?php pll_the_languages(array('dropdown'=>1)); ?>
It was all I could do in css, but I would like to add padding and change the hover bg how it can be implemented, I will be happy to help