During November 2025, Nana Shigematsu focused on improving the accuracy of CSS documentation in the mdn/translated-content repository. She identified and corrected a typo related to the flexbox 'baseline' property, ensuring that developers referencing the documentation receive precise guidance on flexbox alignment. Nana approached the task by carefully reviewing Markdown files and applying her CSS expertise to clarify technical explanations. Although her work did not involve new feature development, it addressed a subtle but impactful issue that could confuse learners. By prioritizing documentation reliability, Nana contributed to reducing potential support queries and enhancing user trust in the resource.