Using only HTML, CSS, and Javascript:

1. Create a page having Image gallery like this with 10 images,
2. If user clicks on any image from bottom it should display the respective image in display area, in bigger format and if user takes mouse over left and right arrow buttons.
3. It should move to previous image on mouse over of left arrow and to next image on mouse over of right button.
4. create a button to exit the page and should ask the user before exiting.