The material of the manual is presented on the example of a single project for creating a business card site, which allows you to sufficiently master the tools of the HTML hypertext markup language and cascading CSS style sheets for developing your own site. The above material is aimed at mastering the tools that allow you to create web pages, combine them into sites, design them in the same style, use programming languages ​ ​ to give dynamic effects to static business sites and place the created sites on the Internet. The obtained level of competence will make it possible to effectively use the capabilities of the global Internet when solving problems in professional activities, will create the basis for independent development of new programming languages ​ ​ and new versions of HTML and CSS.