Screen door for apartment front door - Keeping cats inside

Would greatly appreciate the flexibility of propping the front door open, for the cross breeze. However, we can't let our cats out.

One comment: "This combine with a baby gate keeps my cats inside the house and insects out".

One comment: "We use a wide piece of cardboard spanning the width of the door and resting on the floor that is tall enough to prevent her from escaping, and that gets in the way for us humans."

UPDATE(S):

#1: we purchased the Bug Off 36 by 96 Instant Screen. We'll try some ad-hoc cat-proofing.

#2: we purchased "Grreat Choice Extra Tall Arched Expandable Metal Pet Gate with Small Pet Door," from PetSmart. These two products work well, together, and, with a door stop, all three allowed us to comfortably leave our door open!