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firefox = webdriver.Firefox()
element = firefox.find_element_by_css_selector("this element css selector here")
attributeValue = element.get_attribute("style")
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element = driver.find_element_by_tag_name('a')
properties = driver.execute_script('return window.getComputedStyle(arguments[0], null);', element)
for property in properties:
print(element.value_of_css_property(property))