F • RResizing the viewport
By default all your tests will run in a browser window of 1024x768 pixels. If you want to change the window size, you can do so by using the Set Window Size instruction.
You can resize the viewport while the test is running or even before you start the test, in which case use the Set Window Size instruction as your first step.
You can use a predefined window size from the list available or simply type your custom size in the format WIDTHxHEIGHT. The following animation shows you how to set a custom window size:
