page-widget.rb

# pages/top-nav-widget.rb
module PageObject
  module TopNavWidget
    FORK_LINK = { css: 'img' }
  end
end

# pages/login-page.rb
module PageObject
  class LoginPage
    include TopNavWidget

    def initialize(driver)
      @driver = driver
      @driver.get 'http://the-internet.herokuapp.com/login'
    end

    def nav_text
      @driver.find_element(FORK_LINK).attribute('alt')
    end

  end
end

# example.rb
require 'selenium-webdriver'

driver = Selenium::WebDriver.for :firefox

driver.get('http://the-internet.herokuapp.com')
link = driver.find_element(PageObject::TopNavWidget::FORK_LINK)
puts link.attribute('alt')

login = PageObject::LoginPage.new(driver)
puts login.nav_text

driver.quit