Describe the bug

During the build process, the following warning was displayed in the console:
[WARNING] "overflow-X" is not a known CSS property [unsupported-css-property]

To Reproduce

Steps to reproduce the behavior:

1. npm install toast-ui/editor.
2. Run npm run build.
3. Observe the warning in the console output.
4. See error

Expected behavior

The build process should complete without any warnings or errors.

Screenshots