1. Scroll the page with the mouse. Hold down the ctrl key and scroll the mouse wheel forward with your index finger. At this point, the percentage of page enlargement will be displayed in the upper right corner of the page. When scrolling to the appropriate magnification value, just release the mouse.

2. Scroll down the page with the mouse. Also hold down the ctrl key, the index finger will slide the mouse backwards instead. At this point, the percentage of the page will be displayed in the upper right corner of the page. Let go when the same mouse scrolls to the right size.

3, mouse scrolling can adjust the size of the desktop icon. The method is similar. Hold down the ctrl key and scroll the mouse wheel forward or backward. Pay attention to opening the desktop before operation.