For the company PROVING Sp. z o.o. providing a wide range of services, we had the pleasure to design a One-Page website. Such websites are characterized by placing all the information on the home page (without subpages). The created website has been divided into appropriate sections that correspond to a given item in the menu. Despite its extensive content, the website is made transparent and functional. Responsiveness ensures trouble-free browsing of the website on computers, tablets and smartphones. The designed website was launched on the popular CMS system – WordPress. This allows for intuitive content editing (without programming knowledge).