[Celenium] I don't know how to choose the link.

from selenium import webdriver
path= "C:/Users\KIM/Downloads/chromedriver.exe"
driver = webdriver.Chrome(path)
driver.get('https://komyojikyozo.web.fc2.com')
# Find a frame 
iframes = driver.find_elements_by_css_selector('frame')
for iframe in iframes:
    print(iframe.get_attribute('name'))
# Switch to frame
driver.switch_to.frame('menu')

#? Why doesn't the page come out when I switched frames?
element = driver.find_element_by_css_selector("a").get_attribute('href')

<a href="javascript_:void(0)" onclick="changeVis('dnskvmenu', 'dnskvtree')">「戒蘊篇」</a>