More than 85% of users today browse the internet from their mobile phones or tablet. In addition, responsive design is essential for the organic ranking of websites on Google (SEO). Therefore, Katsantonis Team Racing had to be available on every screen. We have created an e-shop, friendly to all screens (H / P, laptop, tablet, mobile, etc.) so that our customer is available wherever his audience is looking for him. Also, through Responsive Design, we boosted the organic presence on Google.