$(4$ marks$)$ Write following CSS for the HTML page design in previous question:

a$.$ Give any color to the header background, the links are without underline. When hover on the link the underline should display.

b$.$ Give red background color and text color white to the table. The "Add to Cart" button background color green and text color white

c$.$ Give any color as background color to the footer. Also give color to the text in the footer.