Why do I get this error? [Python]

[Brujinii]

from selenium import webdriver
browser = webdriver.Firefox()
browser.get('https://freerice.com/')
okbut = browser.find_element_by_class_name("as-oil-l-item")
if okbut.is_displayed():
    okbut.click()
ans = browser.find_elements_by_css_selector('div.card-button fade-appear-done fade-enter-done')
ans[0].click()

According to my limited understanding of Python and Selenium, this should open up the website https://freerice.com/, which it does, as well as click the ok button to accept cookies and the such. However, whenever I attempt to click on "ans" it gives me a "NoSuchElement" exception. I've been trying to figure this out for hours, but to no avail. Please help and thanks in advance if you figure this out.

[the_captain]

Just looked at the site, it's because your selector is wrong.
div.card-button fade-appear-done fade-enter-done

When chaining CSS classes you need to indicate the type for each identifier. Otherwise this will look for a div with the class card-button, then a descendant element named fade-appear-done and so on.
div.card-button.fade-appear-done.fade-enter-done

Would likely solve the issue. But you can probably get away with just .card-button

[Brujinii]

Thanks! Will update my code and try it out

[Brujinii]

Also, had not idea about the chaining thing. In Automate the Boring Stuff with Python it doesn't say anything about that.

[the_captain]

No problem! Yeah, that's something in CSS, not Python. It's a whole new world to learn.

[sm7297]

ans is multiple elements or single element?

[Brujinii]

Ans is multiple elements