horizontal scrollbar tkinter using grid

from tkinter import *

ws = Tk()
ws.title('PythonGuides')
ws.geometry('400x300')
ws.config(bg='#4A7A8C')

frame = Frame(ws)
frame.pack(expand=True, fill=BOTH, padx=20, pady=20)

lb = Listbox(
    frame,
    font= (12)
    )
lb.pack(expand=True, fill=BOTH)

sb = Scrollbar(
    frame, 
    orient=HORIZONTAL
    )
sb.pack(fill=X)

lb.configure(xscrollcommand=sb.set)
sb.config(command=lb.xview)

lb.insert(0, 'Not all heros wear capes.')
lb.insert(1, 'Game changers are in blue')
lb.insert(2, 'With great power comes great responsibility')
lb.insert(3, 'A noun phrase has a noun or pronoun as the main word')
lb.insert(4, 'With great power comes great responsibility')
lb.insert(5, 'contribute to open source, as this will help & motivate you.')

ws.mainloop()