How to Eliminate render blocking CSS

[al3abmizo]

every time i try to test my page speed i get this issue:

 

Your page has 1 blocking CSS resources. This causes a delay in rendering your page.

None of the above-the-fold content on your page could be rendered without waiting for the following resources to load.

Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.

Optimize CSS Delivery of the following:

Is it possible to defer or asynchronously Css files like Js files?

Thank you