Simply open your preferences (File > Settings or ctrl+alt+s) then filter by ‘frame’.
Note that if you change your project’s files from outside Webstorm, you may need to manually synchronize Webstorm’s copy. To do this, right-click on the folder in your project’s file structure and click synchronize. This only seems to occur on Windows machines due to how they access files (via some locking mechanism?).
src – https://devnet.jetbrains.com/docs/DOC-211