无法单击ajax中的元素

There is a corporate website, the elements of which are formed through ajax. I can't get (or click ) on it because selenium doesn't see this item. WebDriverWait does not help. I tried to page_source. A block of code that is generated via ajax was not present in page_source. Help please

I tried WebDriverWait abd find_elements(By.ID,"id") (CSS_SELECTOR,NAME)

import .... 
browser = webdriver.Ie()
url ='url'
pass = 'pass'
login = 'login'
browser.execute_script("......"+login+"')")
browser.exec.......
browser.find_element(By.CSS_SELECTOR,".sumbit").click()
select =Select(browser.find_element(By.ID,"selectlist"))
select.select_by_visible_text('mytext')
wait.util(expected_conditions.visibility_of_element_located(By.CSS_SELECTOR,'ajaxelement'))

CONSOLE OUTPUT- timeoutexception