What is CSS?
CSS (Cascading Style Sheets) is used alongside HTML to style and format elements in the browser. The file extension is .css and the MIME type is text/css.
The example below defines a CSS rule to render a red 200px square.
.square {
background: #f00;
height: 200px;
width: 200px;
}CSS Usage Example in HTML
The following HTML demonstrates how to use embedded CSS to apply styles to elements.
<!DOCTYPE html>
<html>
<head>
<title>CSS Example</title>
<style>
.square {
background: #f00;
height: 200px;
width: 200px;
}
</style>
</head>
<body>
<div class="square"></div>
</body>
</html>What is a CSS ID Selector?
What is a CSS ID Selector?
#header {
background: #333;
color: #fff;
height: 40px;
width: 100%;
}What is a CSS Class Selector?
What is a CSS Class Selector?
.post {
background: #fff;
box-shadow: 0 0 2px;
color: #333;
height: 600px;
padding: 10px;
width: 400px;
}Why Minify CSS?
Minifying CSS removes spaces, comments, and line breaks to reduce file size and improve load times.
.post{background:#fff;box-shadow:0 0 2px;color:#333;height:600px;padding:10px;width:400px}CSS Formatter / Beautifier / Minifier FAQs
What is a CSS Formatter?
A CSS Formatter beautifies raw or minified CSS code for better readability and debugging.
Can I minify CSS?
Yes, CSS minification is supported and helps reduce page load time.
Is CSS safe to use?
Yes, CSS is safe and widely supported across all browsers.
What file extension does CSS use?
CSS files typically use the
.css extension.