Blue-Pix

require "selenium-webdriver"

driver = Selenium::WebDriver.for :chrome
driver.find_element(:id, "foo").location_once_scrolled_into_view

# then, there is element at bottom of window.

Blue-Pix

require "selenium-webdriver"

driver = Selenium::WebDriver.for :chrome

# element of input[type="checkbox"]
element = driver.find_element(:id, "foo")
# return true if element checked
element.selected?
# toggle checked state
element.click