# CSS Block

A CSS Block is the container that contains one or more rules to apply to a element.

## What is a **CSS Block**

A **CSS Block** is the container that contains 
one or more rules to apply to a element. A block is 
defined by `{}`

```css
div {
    border-radius: 5px;
}
```

Level: Novice · [More C# terms at this level](https://www.ask-codey.com/glossary?category=c-sharp&level=1)

Updated: October 28, 2026

Source: https://www.ask-codey.com/glossary/css-block