---
title: webkitBackingStorePixelRatio
framework: webkitjs
role: symbol
role_heading: Instance Property
path: webkitjs/canvasrenderingcontext2d/1629484-webkitbackingstorepixelratio
---

# webkitBackingStorePixelRatio

## Declaration

```data
readonly attribute float webkitBackingStorePixelRatio;
```