When reading news articles, I’d like to hide all those sidebars and other items that scream for attention, I mean, to make everything black on the webpage except the block of text that I’m interested.
It would be a matter of clicking the extension button on the browser toolbar and selecting the HTML element that I want to read, this would create the Lights Off effect that I’m looking for. I’d prefer an extension for Chrome or Firefox, which I think are more cross-platform.
I only found ways to do this for Video elements, like this and this extensions, this Q&A at Super User and the jQuery plugin shown above.
