We’ll share an awesome grid item animation layout written by Codrops. It is a responsive magazine like website layout which take place when opening the content.

This responsive layout has a sidebar and grid items that animate to larger the content area when it is clicked. The escalating element isn’t animation in width and height, as an alternative its original dimension are already in the expanded size. You simply need to scale it down to begin with. Transitions of all the elements can be controlled by setting classes.

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Source: Grid Item Animation