Actually the question, did this https://codepen.io/Maxim22/pen/aEbxEv
But div(s) with video does not stand in the Popup , and if a little bit to resize the window , they stand as necessary.
What is the reason and how to solve it through CSS
Because the site is loaded the window Chas .load to another page and
just to pull ( change the size to 1 px ) window via js doesn't help.