browser_options = Options()
browser_options.add_argument('--proxy-server=http://%s' % proxy)
browser = webdriver.Chrome(options=browser_options)
@import "styles.less.css";
@import "styles2.less.css";
или так
@import (css) "styles.css";
@import (css) "styles2.css";
jQuery("a:after").css("{transition:'all .5s',transform:'rotate(90deg)'}");