When developing a website, you need to consider how the browser is handling the Css on your site. To mitigate any performance issues that Css might be causing, you should optimize it. For example, you should optimize the Css to mitigate render-blocking and minimize the number of required reflows. This article walks you through key Css performance optimization techniques....the browser is handling the CSS on your site. To mitigate any...any performance issues that CSS might be causing, you should optimize...