Which of the following languages is used to set the width of a media player, add borders, drop shadows, and apply filters and transformations to the media player's appearance?
A. Ruby
B. CSS
C. PHP
D. Perl

B. CSS

Explanation:

CSS is a language used to format or add styling to web components like the media player. style rules such as borders, drop-shadows, filters, transformation, etc, are added using CSS. CSS stands for Cascading Style Sheets, it is the core three languages needed to create a website, CSS is used alongside HTML and JavaScript, where HTML provides structure, CSS adds styling and JavaScript adds interactivity.

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