I have two tabs open: one in Opera for playing videos on YouTube, and another in Microsoft Word for editing documents. When I switch between these two applications using the "Alt + Tab" shortcut, I face an inconvenience. Upon switching from Opera to Word, the Alt shortcut seems to grab the focus of YouTube, causing it to lose keyboard focus. Consequently, when I return to Opera from Word, I find that I am unable to use the "Space" key to play or pause the video. Instead, I am required to use the mouse to click on the video in order to regain focus.
(My English is not good, so please let me know if I need to explain more about my topic)