셀레니움 요소 찾기 방법

http://daplus.net/python-selenium-webdriver-python%EC%97%90%EC%84%9C-%ED%8A%B9%EC%A0%95-%ED%85%8D%EC%8A%A4%ED%8A%B8%EA%B0%80-%ED%8F%AC%ED%95%A8-%EB%90%9C-%EC%9A%94%EC%86%8C%EB%A5%BC-%EC%B0%BE%EC%9C%BC%EB%A0%A4/