https://scottjehl.com/posts/the-simplest-way-to-load-css-asynchronously/
The Simplest Way to Load CSS Asynchronously | Scott Jehl, Web Designer/Developer
CSS will block rendering while loading. Here's how not to do that, simply.
load css asynchronouslywayweb
https://github.com/flarum/framework/pull/4462
[2.x] perf: load CSS asynchronously to eliminate render-blocking stylesheet by imorland · Pull...
Simple forum software for building great communities. - [2.x] perf: load CSS asynchronously to eliminate render-blocking stylesheet by imorland · Pull Request...
load css asynchronouslyx perf