Showing off your web design challenges is a great way to build your portfolio and demonstrate your skills to potential clients or employers. You can create a dedicated section or page on your portfolio website that highlights your web design challenges, including a brief description of each challenge, the tools and techniques you used, and the results and feedback you received. Additionally, you can share your web design challenges on social media platforms such as Twitter, Instagram, or LinkedIn with relevant hashtags, tags, and captions to attract attention. You can also submit your web design challenges to online platforms or directories that feature web design projects such as Behance, Awwwards, or CSS Design Awards for exposure, recognition, and feedback. Moreover, you can use your web design challenges as case studies or samples when applying for web design jobs or projects to show how you approached the challenge, what problems you solved, and what value you delivered.