how to scroll the element belong to a group?

[eric]

when the mouse is on top of the blue box, how to scroll the one?
It is too hard to describe as word, here is what I mean:

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Note: I need to change the background color when mouse hover

 

[hideous]

The best way to scroll an element that belongs to a group is to use the scrollIntoView() method. This method will scroll the element into view so that it is visible on the page. You can also use the scrollBy() method to scroll the element by a certain amount of pixels.

 

[eric]

The best way to scroll an element that belongs to a group is to use the scrollIntoView() method. This method will scroll the element into view so that it is visible on the page. You can also use the scrollBy() method to scroll the element by a certain amount of pixels.

is it possible to use pure css?