HyperText Markup Language, commonly referred to as HTML, is the standard markup language used to create . Along with CSS, and JavaScript, HTML is a cornerstone technology, used by most websites to create visually engaging webpages, user interfaces for web applications, and user interfaces for many mobile applications. can read HTML files and render them into visible or audible web pages. HTML describes the structure of a website along with cues for presentation, making it a markup language, rather than a..
In mathematics, especially in set theory, a setA is a subset of a set B, or equivalently B is a superset of A, if A is "contained" inside B, that is, all elements of A are also elements of B. A and B may coincide. The relationship of one set being a subset of another is called inclusion or sometimes containment.
