A cross-browser solution for syncing Javascript functionality with CSS media queries

Read more about this technique here

In your CSS file

1. Add a font-family property to the head element with a value you wish to use for the name of your breakpoint
2. Add an :after pseudo element with a content value the same as your font-family property to the body element
3. Repeat steps 1 and 2 for each media queries you want to sync with JavaScript.

Remember, "The absence of support for @media queries is in fact the first @media query." - Bryan Rieger

In the mqSync function

4. Set up conditions for your breakpoint variables from you CSS file
5. Add the JavaScript you want executed in sync with your media queries inside the conditions you created

View Demo - with respond.js

View Demo - without respond.js

Jeremy Keith, Chris Coyier, Emil Björklund