Frames per second (FPS) is a measure of how smoothly a video or animation is playing. A higher FPS means that the video or animation will appear smoother and more lifelike. In CSS, FPS can be used to measure the performance of a website or application.
There are a few different ways to check your FPS in CSS. One way is to use the Chrome Developer Tools. To do this, open the Developer Tools panel (Cmd+Option+I on Mac, Ctrl+Shift+I on Windows) and click on the “Performance” tab. In the “Performance” tab, you will see a graph of the FPS over time. You can also use the “Frames” tab to see a more detailed breakdown of the FPS.