how can css visible overflow content have a non-transparent background so content underneath is hidden?

how can css visible overflow content have a non-transparent background so
content underneath is hidden?

References

Reference NO 1

http://stackoverflow.com/questions/15198235/how-can-css-visible-overflow-content-have-a-non-transparent-background-so-conten

Reference NO 2

http://stackoverflow.com/questions/10329881/css-background-diappearing-when-overflow-is-visible

Reference NO 3

http://stackoverflow.com/questions/11894170/css-transparency-on-background-affects-content

Reference NO 4

http://stackoverflow.com/questions/15508790/child-divs-blocking-visibility-of-parent-div-background

Reference NO 5

http://stackoverflow.com/questions/12082657/is-there-any-way-or-trick-to-get-just-the-visible-content-of-the-overflow-set-to

Reference NO 6

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Reference NO 7

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Reference NO 8

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