Worked on the seb-oss/green repository to enhance the dropdown component by implementing size attribute support for the gds-form-control-header, enabling consistent sizing of both header and footer elements. This feature was achieved through JavaScript and TypeScript, applying CSS class-based styling based on the size attribute to ensure design-system consistency and easier customization. Comprehensive automated tests were added to validate the new behavior and provide regression protection, reflecting a focus on robust front-end development and testing practices. No major bugs were addressed during this period, with efforts concentrated on improving component flexibility and maintainability within a modern web components framework.