By default, making your font bigger or smaller by using Ctrl + Mouse Wheel is not enabled in Visual Studio Code. But with a settings change, we can enable this.

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Steps to enable Mouse Scroll Zoom in Visual Studio Code

In Visual Studio Code window, click on File >> Preferences >> Settings.

This will create a new tab called Settings.

On Search Settings, type mouse wheel zoom.

Check the checkbox under Editor: Mouse Wheel Zoom.

This will automatically save the settings.

When you go back to your code, you will now be able to use Ctrl + Mouse Wheel to zoom the font in your editor.