import tkinter as tk

class loginPage(tk.Frame):
    def __init__(self, master):
        super().__init__(master)
        self.master = master
        master.title('login page')
        master.geometry('350x320')
        self.create_widgets()

    def create_widgets(self):
        # create a Form label
        tk.Label(text="gmail login", bg="#3cba54", width="30", height="2", font=("courier", 30)).pack()
        tk.Label(text="").pack()
        # create email label
        emailLabel = tk.Label(text="enter email", font=("courier", 18))
        emailLabel.pack(pady=5)
        # take user email
        usrEmail = tk.Entry(font=("courier", 18))
        usrEmail.pack(pady=5)
        # create password label
        pswdLabel = tk.Label(text="password", font=("courier", 18))
        pswdLabel.pack(pady=5)
        # take usr password
        usrPswd = tk.Entry(font=("courier", 18))
        usrPswd.pack(pady=5)
        # send email button
        sendBtn = tk.Button(text="send email", font=("courier", 12), width=15, height=3, command=self.openSendEmail)
        sendBtn.pack(pady=5)


    def openSendEmail(self):
        window = tk.Toplevel(root)
        app2 = sendEmail(master=window)

class sendEmail(tk.Frame):
    def __init__(self, master):
        super().__init__(master)
        self.master = master
        master.title('send email')
        master.geometry('500x400')
        self.create_widgets()
        self.pack()

    def create_widgets(self):
        # create to label
        self.toLabel = tk.Label(text='to: ', font = ("courier", 18))
        self.toLabel.pack()
        # create to entry
        self.toEntry = tk.Entry(font=("courier", 18))
        self.toEntry.pack()
        # create body entry
        self.emailBody = tk.Entry(font = ("courier", 18))
        self.emailBody.pack()


root = tk.Tk()
app = loginPage(master=root)

app.mainloop()