What is the default browser zoom level?
By default, Chrome sets the zoom level to 100%. To manually adjust the settings, use the Ctrl key and “+” or “-” combos to increase or decrease the page magnification. If you are using a mouse, you can hold down the keyboard Ctrl key and use the mouse wheel to zoom in or out.
What happens when zoom in browser?
Zooming as implemented in modern browsers consists of nothing more than “stretching up” pixels. That is, the width of the element is not changed from 128 to 256 pixels; instead the actual pixels are doubled in size.