# Anonymous box

A box the browser creates itself, with no element behind it.

## What is an **anonymous box**?

An **anonymous box** is a box the browser creates itself, with no element behind it, for example to wrap loose text next to a block.

```html
<div>
  Loose text          <!-- wrapped in an anonymous block box -->
  <p>A paragraph</p>
</div>
```

Level: Master · [More CSS terms at this level](https://www.ask-codey.com/glossary/subjects/css/master)

Updated: September 27, 2026

Source: https://www.ask-codey.com/glossary/anonymous-box