HTML selectors
HTML's purpose is to provide content and structure. That's all we need in order to convey any kind of information, no matter how complex. However, as computers and web browsers became more powerful and the use of web pages more widespread, users and developers wanted more. They asked for ways to extend HTML to also include beautiful formatting (design) and rich behavior (interactivity).
That is why Cascading Style Sheets (CSS) was created—a style language that defines the design of HTML documents. Additionally, JavaScript emerged as the programming language of choice for the client side, adding interactivity to web pages.
The style rules and the interactive features provided by CSS and JavaScript are associated with well-defined ...
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