Worked on the element-plus/element-plus repository to enhance the MessageBox component by introducing an auto-hide feature for the button container, ensuring that empty space is eliminated when both action buttons are not displayed. This update focused on improving the user interface’s cleanliness and overall user experience. The implementation involved writing new Vue.js components and JavaScript logic, as well as adding automated regression tests to validate the hidden-buttons behavior and prevent future issues. Additionally, the work included thorough linting and style cleanups to maintain code consistency and readability, reflecting a careful approach to front end development and maintainability.