yes simply remove the Bolts framworks which also somehow already included in FB SDK
ios4,responsive-design,media-queries,viewport,iphone-4
As I look at the site now you have mulitple viewport tags. Try removing them all and replacing them with either <meta name="viewport" content="width=device-width, initial-scale=1.0"> or if you want to prevent user zooming: <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=0"> UPDATE Also, in you media queries you use max-device-width, e.g. @media only...