Unused CSS part exists in mobile CSS framework

Summary

Unused CSS part (.container-fluid) exists in framework/mobile.scss.

50879-unused-css

As .content-wrapper .container-fluid (defined in framework/sidebar) is behind of @media (max-width: 575.98px) .container-fluid (defined in framework/mobile), the latter is always overridden by the former, so the latter is not used now.

cf. #50877 (moved)

Edited by Takuya Noguchi