![Inspect and trigger CSS media queries, also locate them in code](/static/blog/inspect-and-trigger-css-media-queries/image/inspect-trigger-css-medi-d4dec8a6a8961.gif)
Use the Media Query Inspector to inspect and trigger the registered breakpoints on a page. In Device Mode, click the icon which looks like staggered bars in the upper left corner of the page, the MQI opens.
You can trigger the various breakpoints with a click on a bar. If you right click on a bar, you can reveal its position within the source code.