What are all those junk CSS files in site/files/css with names like css_ZFCUUB6IIfaVQ-erWDr0M0Na1JbxEsU-8zjQrWAtrbU.css? There are hundreds of them.
How do these get generated over time? What do they do?
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2 Answers
They aren't junk files, they are aggregated files are generated when you have CSS aggregation turned on. They make your page load times faster, as multiple files are aggregated into a single file, meaning less files have to be downloaded to the browser.
Yes @Jaypan is right. You need to check on admin/config/development/performance. In the Bandwidth optimization section there is an option for Aggregate and compress CSS files. Deselect that option and save, if you want to remove them.
Clear the cache and check.
