# Line box

The box holding one line of text; as tall as its tallest item.

## What is a **line box**?

A **line box** holds one line of text and inline elements. Its height comes from the tallest thing on that line.

```css
p { line-height: 1.5; }
p img { vertical-align: middle; }   /* a tall image makes its line box taller */
```

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/line-box