This post was most recently updated on March 15th, 2016
Dust Me :
The CSS files of your website may have several redundant rules that are no longer used by any element on the web pages. For instance, you may have added a site search box on your website and associated styles went into the stylesheet. Later, if you decide to remove that search box, the styles may continue to exist in your CSS though they aren’t being used anywhere.
These unused entries in your CSS files increase the page load time of your website and also affect the site’s performance as the browser has to do extra work parsing all the extra rules. And even if the impact on performance is minimal, it would make your task of maintaining CSS easier if the files are kept clean and well-structured
So…Dust It!
A very useful add for it is available on Firefox named “Dust Me Selector ”
Dust-Me Selectors is development tool that scans your website to find unused CSS selectors.
