CSS stands for Cascading Style Sheets. CSS is used for the layout of various elements within websites and/or apps. This concerns style elements such as fonts and tables. In this way, each element knows its placement and size within the framework of a website. In the past, the CSS was created to distinguish between display for different types of browsers and operating systems. This has not been the case for a long time.
The advantage of working with CSS is the one-time description of style and layout. These are called by tags in the source code of HTML pages. By now, CSS3 is the last version for style developing.
Every website or application needs a CSS, multiple CSS are also possible but not recommended. Multiple CSS sheets make the readability less good, so that the pages load less quickly. In this case, one efficiently designed sheet is the ideal starting point.
CSS is applied everywhere on the web, including all websites and web applications. Developing a good basic sheet is useful for companies. The CSS can be used for multiple purposes. This makes it applicable to the website but also apps.
A CSS is part of the development and design of a website and application. Writing/developing CSS requires specialist knowledge. This knowledge is available on the internet and from textbooks. Nevertheless, it is advisable to call in a developer for developing a CSS. The expertise of a developer ensures clean source code, is efficient and applicable everywhere.