What if I told you, there's more than one viewport. BRRRRAAAAAAAMMMMMMMMMM And the viewport you're using right now, is actually a viewport within a viewport. BRRRRAAAAAAAMMMMMMMMMM And sometimes, the data the DOM gives you, refers to one of those viewport and not the other. BRRRRAAAAM… wait what? It's true, take a look: # Layout viewport vs visual viewport The video above shows a web page being sc
![Introducing visualViewport - Chrome for Developers](https://cdn-ak-scissors.b.st-hatena.com/image/square/0de6460538a79d8171fe10e0d781cc26f27d245c/height=288;version=1;width=512/https%3A%2F%2Fwd.imgix.net%2Fimage%2Ffuiz5I8Iv7bV8YbrK2PKiY3Vask2%2FiGPiWTtoy7iF932Xday1.png%3Fauto%3Dformat%26w%3D1521)