Reload css stylesheet without reloading the page
Sometimes, a local development environment can be really slow at reloading pages. If you are working on styling a page or component and you want to check your changes, every page refresh generates frustration.
You can then also opt for only reloading the stylesheets of a page. This will likely be significantly faster. You can do this by using the following command in the console of your browser’s development tools:
for (var link of document.querySelectorAll("link\[rel=stylesheet\]")) link.href = link.href.replace(/\\?.\*|$/, "?" + Date.now());
Source: https://stackoverflow.com/a/44010918/4496102