Lera Kalashnikova developed the About Me section for the o-hadalin/portfolio-2.0_g.5 repository, focusing on both structure and responsive design. She used HTML for the initial markup and applied advanced CSS styling to ensure the section adapts seamlessly across mobile, tablet, and desktop devices. Her work addressed typography, spacing, imagery, and background behavior, aligning the portfolio’s branding with device-specific user experiences. Through iterative commits, Lera stabilized image rendering and background issues, preparing the feature for future content expansion. The project demonstrates her proficiency in front end development, particularly in responsive design and cross-device CSS implementation within a real-world context.