Skeleton Css - ( CDN )

Here the skeleton css cdn copy it and paste this in head section means under <head> --- here ---</head> Tag

What IS - ( CDN - Content Delivery Network )

CDN - Stands for Content delivery networks in easy words i can explain you that lets say you have a css file or javscript file or anyfile so in order to link those file within your page what you do ? you write this <link rel="stylesheet" href="youfilename.css"> but lets say you don't want to write for that you can use CDN Content delivery network just copy and paste the link in head section and then you don't need to have css file in your folder of website because whenever you will have internet CDN Content delivery networks link will download it . you will fell as if css file is in your folder . and you the same with Skeleton Css CDN