HTML, which stands for Hypertext Markup Language, is the core language in Web development and is responsible for the elements of a Web page being displayed to the end user. Other Web programming languages are capable of producing visible content to the user but only when called on from inside an HTML tag. A tag is the term given to individual HTML functions that can define the body, header, meta data and more.
Cascading Style Sheets, or CSS, are a type of document designed to style entire websites, individual pages and even individual elements within an HTML page. Many websites today rely on CSS for not only the style of the page but also the general layout. CSS includes features and functions that make positioning elements on a page simpler than doing so with HTML. Websites with mobile and responsive designs are achieved through the use of CSS functions.
An alternative to learning programming languages for the Web is to use a drag-and-drop WYSIWIG service such as Wix or Squarespace. These services allow for the design, editing and publication of a website with no knowledge of programming. Additional functionality and features, such as video and photo galleries, are implemented through the use of pre-made widgets and plug-ins.