Worked on improving cross-platform reliability for the microsoft/fluentui-blazor repository by addressing CSS rendering issues on older iOS devices. Focused on front end development using TypeScript and CSS, the solution introduced feature detection to determine support for adoptedStyleSheets. When unsupported, the implementation provided a robust fallback by dynamically creating and appending a style element to the document head, ensuring consistent UI rendering. This targeted bug fix resolved a known "Illegal constructor" error, reducing iOS-specific regressions and enhancing stability. The work demonstrated careful attention to compatibility and maintainability, contributing to a smoother user experience across diverse device environments within the project.