Swiper allows Slides to slide of the view

[ralfbalzer]

Hi, swiper allows my slides to be moved off the view.

If I use the mouse or keyboard, I can get to the point, where the slides have disappeared totally.
In the example "mySwiper2", all slides fit on one page. I slide them and they go off page, without me being able to bring them back in view.

Any idea how I can prevent this? The sample page is attached.

(.html page saved as .txt)
swiperTest.txt