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What extension are you using to tell you the window size?
Towards the end of the video, Guil resizes the window and it tells him window size, and viewport size. What extension is this, and what is viewport referring to?
Gunhoo Yoon5,027 Points
If you are using Chrome just open the developer tool and re-size window. I'm not sure about other browsers.
As far as I know, viewport is just screen size that the device renders.
Update: Firefox has built-in responsive-design mode in console. You can find it on top right side within developer tool which is 2nd icon you see before the setting.
Bro.. the viewport size is the screen size of the device if you want to check your browser's viewport as you change it's width this link will help http://viewportsizes.com/mine/ go to this link and on the topmost section u will see your browser's current viewport i hope my answer helped you..