diff --git a/README.md b/README.md
index e2515a9..42df6a7 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,9 @@
 
 CO2estimeter is a web extension to estimate the carbon impact of web browsing activity.
 
+<p align="center">
 <img src=assets/co2estimeter_demo_screenshot.png alt="CO2estimeter Demo" width="400px"/>
+</p>
 
 ## How to install