( Custom CSS ) questions after update to Coupon Theme v 8.9.4 ans WP 4.6

Hi, can someone please advise this CSS-dummy to adapt the Custom CSS?
After updating from coupon theme 6.x I have to deal with some layout issues:
Question 1: Mobile display of a website coupon (post). I like to change the size of the font and the number of rows. Is that possible with custom CSS?
Question 2: Mobline display of a website coupon (post). Is it possoble to replace the button (as it is reduced now). Option is on top or below the Coupon title.
Question 3: Same as Q1: Can I change the number of rows (and font size) on the PC-displayed coupons? The use of html <small> does not work on the Coupons.
Question 4: An added banner, affiliate link (460×60 pixels) was in the 6.x version reduced to fit in the Coupon. Now it is goining out of the frame. Can you advice me to adapt it without changing the banners (as they are good on the pc-version)
Question 5: The button “do not show expired coupons”is disappeared. Ir there some way to fix that?
Question 6: Last but not least: after the new update the coupons are displayed in order of time added. So last added coupons first. In “Website display” I like to have the order: expired – no end date – actual coupons. So expired orders last.

Thanks in advance, Sander.