Try moving yellow bricks from one green box to another.
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Resize manager
Try changing box sizes.
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Effects manager
Position animation (press the button for play):
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Color animation (move the mouse over the text):
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Lazy Loader manager
Pressing buttons should initiate dynamic loading content.
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History manager
Pressing a button below moves the box to a corresponding position. The new location is saved in the browser history. Thus navigating browser back/forward buttons you can get box moved to the previous/next position.
If you add the page (with a box located in a position different from the initial) to the browser bookmarks and later the page from a bookmark you can see the box is located where it was when bookmarked.