The purpose of the thesis was to research and study the concept of creating a responsive web design and implement the study to build a website design that is optimised for adaptive web design. The theoretical part of the thesis work explains the concepts of creating responsive web pages and elements to create an adaptive design, including flexible text, flexible grid, and adaptive media, as well as a theory on media queries. For practical purposes, a website as a prototype was built, tested on various screen resolution devices, and evaluated in terms of adaptive design. The development of the project involved various steps. Initially, the requirements of the project were analysed. Based on the requirements, the project was designed an...