---
title: Viewport
slug: o7bf0443
canonical_url: https://docs.coveo.com/en/o7bf0443/
collection: glossary
source_format: adoc
---
# Viewport
A {doctitle} is the visible area of a web page within a browser window.
It varies in size based on the device (desktop, tablet, or mobile) and browser settings, and affects how content is displayed.
The viewport is crucial for responsive design, allowing web pages to adapt to different screen sizes and orientations.