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CSS is the language we use to style an HTML document. CSS describes how HTML elements should be displayed. This tutorial will teach you CSS from basic to advanced. Start learning CSS now »
The most common way to add CSS, is to keep the styles in external CSS files. However, in this tutorial we will use inline and internal styles, because this is easier to demonstrate, and easier for you to try it yourself.
W3.CSS is a modern, responsive, mobile first CSS framework. W3.CSS provides equality for all browsers: Chrome. Firefox. Edge. IE. Safari. Opera. W3.CSS provides equality for all devices: Desktop. Laptop. Tablet. Mobile. W3.CSS is standard CSS only (No jQuery or JavaScript library). Start learning W3.CSS now »
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CSS Syntax. A CSS rule consists of a selector and a declaration block: The selector points to the HTML element to style (h1). The declaration block (in curly braces) contains one or more declarations separated by semicolons. Each declaration includes a CSS property name and a value, separated by a colon.
An animation lets an element gradually change from one style to another. You can change as many CSS properties you want, as many times as you want. To use CSS animation, you must first specify some keyframes for the animation. Keyframes hold what styles the element will have at certain times.
W3Schools is Powered by W3.CSS. CSS Reference Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, PHP, Python, Bootstrap, Java and XML.
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.
The most common layout is one (or combining them) of the following: 1-column (often used for mobile browsers) 2-column (often used for tablets and laptops) 3-column layout (only used for desktops) 1-column: 2-column: 3-column: We will create a 3-column layout, and change it to a 1-column layout on smaller screens:
Focused Inputs. By default, some browsers will add a blue outline around the input when it gets focus (clicked on). You can remove this behavior by adding outline: none; to the input. Use the :focus selector to do something with the input field when it gets focus:
