Do you use responsive images, lazy loading, or other optimizations? If not, why not? What affects your decisions?
Answer a few simple questions to help us understand your needs, and what we can do to make your life easier. Get Started

Inspect and trigger CSS media queries

Inspect and trigger CSS media queries, also locate them in code

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.