title: TclError: unknown option "-font" for button in tkinter
body: <p>I am writing a function in python to display components of a window in tkinter. While displaying a button I get this error:</p>
  <pre><code>TclError: unknown option &quot;-font&quot;
  </code></pre>
  <p>Here is my code:</p>
  <pre><code>    from tkinter import *
      from tkinter.ttk import *
      import socket
      import psutil 
      from plyer import notification 
      master = Tk()
      navbar = Canvas(master,width=width,highlightthickness=0, height=60, bg='#0a2145')
      name = Label(master, text=&quot;Estancia&quot;, font=('Verdana',12,'italic'))
      name.config(background='#0a2145', foreground='white')   
      sys_det = Label(master, text='Estancia', font=('Verdana',32))
      sys_det.config(background='#304566',foreground='white')
      ID = Entry(master, font=('Verdana',10,'italic'), width=20)
      Pass = Entry(master, font=('Verdana',10),show='•', width=20)
      det_sub = Button(master, text = 'Submit',font=('Verdana',10), command=redirect, fg='white', bg='#304566', 
                      height=1, width=2)
      
      canvas1.create_window(50, 22, window=name)
      canvas1.create_window(680,20,window=navbar)
      canvas1.create_window(685,225,window=sys_det)
      canvas1.create_window(685,325,window=ID)
      canvas1.create_window(685,350,window=Pass)
      canvas1.create_window(685,380,window=det_sub)
  </code></pre>
  <p>Can anyone figure out what is the problem?</p>