How to change the font in this code?

Question

https://code.sololearn.com/WWSsd8sCr0sl/?ref=app
And also how to change the color of the jumbotron to pink?

Answer 1

https://www.w3schools.com/css/css_font.asp
https://www.computerhope.com/issues/ch000072.htm

Answer 2

Thank you...!