https://jsfiddle.net/colonyorange9/rcsf6zqg/
https://posteezy.com/upvc-door....-panel-replacement-c
With a cat flap, you can allow your cat to enter and exit your home independently. This allows your pet to move around freely and encourages exercise. It also reduces the risk of obesity and reduces boredom. Taskers can install cat flaps in wooden or uPVC doors, and some also use wall installations. They begin by marking the area of the door and drilling around the corners. How to install a Cat Flap A cat flap allows your pet to go out without opening the door or window. Thi