# CSS

Cascading Style Sheets - CSS - is a method for adding style (fonts, colors, spacing, layout) to documents, most commonly    (X)HTML.

## Definition

The definition of a CSS element consists of a **selector** tag and a **definition block** describing the formatting.

The selector (an *element type*, a unique *ID* or a *class*) identifies the HTML element that the formatting applies to.

The *declaration block* starts with `{`, ends with `}` and contains one or more *declarations*.

Each *declaration* consists of a CSS *property name* followed by a colon and the *value* for the property. Each declaration ends with a semicolon.


### Examples

An element type selector:

```
p {
    text-size: 14px;
}
```

An ID selector:

```
#name {
    color: red;
}
```

A class selector:

```
.class {
    text-align: center;
}
```


### More information

For more information, see [W3Schools.com](https://www.w3schools.com/css/default.asp)