This Best Practice Deep Dive looks at the issues involved with the order in which files are downloaded, tells you how AT&T ARO can help identify when certain files are loaded in an inefficient order, and provides recommendations for downloading style sheets and scripts.
As a developer building HTML 5 style apps or webpages, you can control the order that files are requested by your mobile app. It is important to consider the order you request the files in, because some ways are faster than others.
Best Practice Recommendation
The Best Practice Recommendation is to download CSS before script files, and to move SCRIPT tags to the bottom of the page whenever possible.