How to get the screen, browser window, and web page sizes (width and height) in JavaScript.
What are the best screen sizes for responsive web design?
How to Get the Screen, Window, and Web Page Sizes in JavaScript
Responsive design - Learn web development
Get the size of the screen/browser window
Most Standard Webpage Sizes [And Ideal Ones] - Alvaro Trigo's Blog
How to Capture Screenshot of Page using JavaScript - Phppot
The Beginner's Guide to Website Development
javascript - Get the size of the screen, current web page and browser window - Stack Overflow
Element size and scrolling
Window management
How to enable JavaScript in your browser and why