from tkinter import *
import webbrowser

root = Tk()
root.geometry("400x300")
root.resizable(0, 0)
root.config(bg="#103030")
root.title("Feliz Aniversário")
titulo = Label(text="Feliz  Aniversário",
               font=("Arial", "28", "bold"), bg="#103030", fg="#49e3e3")
titulo.place(relx=0.1, rely=0.05)


def app():
    new = 2
    url = "https://www.youtube.com/watch?v=bNUG7_HVn-Y/"
    webbrowser.open(url, new=new)
but1 = Button(text="Carregar\nAqui", bd=2, bg='#107db2', fg='white',
              font=('verdana', 18, 'bold'), command=app)
but1.place(relx=0.3, rely=0.3, relwidth=0.43, relheight=0.45)

but_sair = Button(text="Sair", bd=2, bg='#107db2', fg='white',
                  font=('verdana', 12, 'bold'), command=root.destroy)
but_sair.place(relx=0.7, rely=0.9, relwidth=0.25, relheight=0.1)


root.mainloop()