The standard Webflow breakpoints media queries are:-
@media (max-width: 991px) /*Tablet */
@media (max-width: 767px) /* Mobile - Landcape */
@media (max-width: 479px) /* Mobile - Portrait */
Desktop sizes are above 992px are handled in the initial CSS.
About the Author

Glenn
A highly experienced Web Designer / Web Developer (Webflow, WordPress, Weebly & Custom), Front-end / Back-end Developer & New Media Specialist, with extensive knowledge of a wide spectrum of technologies in the Development and Creative Industries, built up over a number of years.