Videos online keep on zooming in?

The actual page size is not affected by the zooming, but the viewport is. The viewport is the visible portion of the page on your device, and it can be configured to be bigger. This is done using the meta viewport tag. Though it is not applicable for all websites, the meta viewport tag can be used to control the viewport on mobile and tablet devices. The meta viewport tag is used by copying and pasting the following code into the head of the document: