Hide all Images, videos on all websites, hover to show
Hide pictures and videos from all websites.
Lighten the solid color background of all websites.
Mouseover to restore display.
Browse the website at work more discreetly!
If you don't want it to take effect on all pages and only on the pages you select, please refer to: https://www.tampermonkey.net/faq.php?q=Q103
Note: Can't work on some SPA(https://en.wikipedia.org/wiki/Single-page_application) sites.
