During November 2025, Yata focused on enhancing the mdn/translated-content repository by improving the quality and clarity of CSS documentation, particularly for Japanese localization. Using CSS and Markdown, Yata identified and corrected typos, clarified technical descriptions, and aligned Japanese terminology with English references to ensure consistency across documentation. The work involved detailed edits to properties such as font-variant, flex-grow, and grid-column, with each change carefully documented through precise commit messages. By addressing ambiguities and improving translation accuracy, Yata contributed to more reliable documentation and smoother onboarding for developers, demonstrating a methodical approach to multilingual web development and documentation quality.