What is CSS in HTML?

Developed by World Wide Web Consortium (W3C), CSS stands for cascading style sheets used to style elements coded in markup languages like HTML. CSS isolates the visual representation of a web interface from the UI content.

HTML and CSS are interrelated to each other since HTML is a foundation of a website, whereas CSS is the aesthetics of a website. CSS has a simple English syntax with a set of rules.

CSS syntax consists of a selector and declaration block where you can select an element and declare what CSS you wish to apply to that specific element.

Shown below is a CSS syntax:

<style> 
p { 
color:red; text-weight: bold; 
} 
<style>

For more information about CSS properties, check out our CSS cheat sheet.