CSS Syntax

A CSS rule consists of a selector and a declaration block.

CSS selector

The selector points to the HTML element you want to style.

The declaration block contains one or more declarations separated by semicolons.

Each declaration includes a CSS property name and a value, separated by a colon.

Multiple CSS declarations are separated with semicolons, and declaration blocks are surrounded by curly braces.

In this example all <p> elements will be center-aligned, with a red text color:

p {
color: red;
text-align: center;
}

p is a selector in CSS (it points to the HTML element you want to style: <p>).
color is a property, and red is the property value
text-align is a property, and center is the property value

You will learn much more about CSS selectors and CSS properties in the next chapters!