Story

The linked article is about a buggy animation on BitBucket's web UI causing high CPU and GPU usage on Chrome. This results in slow performance even on high-end hardware. The issue is caused by a CSS animation rotating a square image that overlaps and needs the entire page layout to be recomputed on every frame. The problem is exacerbated by the page being responsive, causing neighboring and parent elements to also be adjusted. Chrome performance tools can be used to monitor the impact of this issue.