Element not visible with button click in selenium chrome driver - selenium-webdriver

Question

I'm trying to click the continue button after filling in the fields on this webpage. But an exception is thrown saying element is not visible even though I maximize the screen and you can clearly see the button.
I have tried the following even with waiting 10 seconds for the page:
driver.findElement(By.xpath("//*[#id=\"submitButton\"]/span")).click();
driver.findElement(By.cssSelector("#submitButton > span")).click();
driver.findElement(By.partialLinkText("Continue")).click();
driver.findElement(By.className("caret_rebrand")).click();
driver.findElement(By.name("submitButton")).click();
driver.findElement(By.xpath("//span[contains(#class,'red') and contains(text(), 'Continue')]")).click();
Here is the part of the html I am trying to access:
<button style="padding-left: 0px;" type=button" "id=submitButton" class = "nbutton" title = "Continue" onclick=_hblicnk('continue,'continue'); goFeaturePage('true');">
<span style = "padding-right: 12px;" class="red"
"Continue"
<img class="caret_rebrand">
</span>
I expect the continue button to be found and clicked. attached is the picture of the webpage
UPDATE: 8-3-19: I've tested the following pieces of code and it is able to find the element in all cases. But when adding the .click() function to any one of them, it causes a no such element exception.
driver.findElement(By.name("submitButton")).click();
driver.findElement(By.id("submitButton")).click();
driver.findElement(By.cssSelector("#submitButton")).click();
driver.findElement(By.xpath("//*[#id=\"submitButton\"]")).click();

Answer 1

My expectation is that you need to click the <button> element as this <span> might be not clickable at all. You can use i.e. title attribute to uniquely identify the element on the page
It's better to use Explicit Wait to ensure that the button is present and clickable as it might be the case it's not available in DOM right away. Check out How to use Selenium to test web applications using AJAX technology article for more details
Assuming all above I believe you should be able to use below code for clicking the button:
continue_button = WebDriverWait(driver, 10).until(EC.element_to_be_clickable((By.XPATH, "//button[#title='Continue']")))
continue_button.click()