<https://w3schools.invisionzone.com/topic/53171-problem-with-blur/#comment-292874>
<http://schema.org/text>
"no, i dont mean close, i want that the window steel be open, but will be behind the main window. \ni try focus on the first window but its dosent work \n"
<https://w3schools.invisionzone.com/topic/53171-problem-with-blur/?tab=comments#comment-293006>