title: How to make tkinter text bob up and down slowly
body: <p>I am making a game, and I am trying to make the title bob up and down like it's in water. How do I do this?</p>
  <p>I have tried using <code>intro.move()</code>, but I realized that this is a non-existent function.</p>
  <pre><code>from tkinter import *
  
  window = Tk()
  
  root = Canvas(window, width=500, height=500, bg='limegreen')
  
  intro = root.create_text(250, 250, anchor=CENTER, text='foo', fill='black')
  # intro.move() This is non-existent.
  
  root.pack()
  root.mainloop()
  </code></pre>
  <p>I know that <code>intro.move()</code> won't work, but I can't find any other way. How do I make the text move up and down?</p>