How can I increase the font size in WebStorm?
Change font size with MouseWheel (called “zooming in the editor”) To enable changing font size in the editor Open the Settings/Preferences dialog, expand the Editor node, and click General. Make sure that the setting Change font size (Zoom) with Ctrl+MouseWheel is enabled. https://www.jetbrains.com/help/idea/2017.1/zooming-in-the-editor.html