Question

what is css . how it is useful​

Answer 1

Explanation:

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Answer 2

Answer:

CSS stands for Cascading Style Sheets. It is a style sheet language which is used to describe the look and formatting of a document written in markup language. ... It can also be used with any kind of XML documents including plain XML, SVG and XUL.

One of its key benefits is the way it allows the separation of document content (written in HTML or a similar markup language) from document presentation (written in CSS