ヘッダーに <script type="text/javascript" src="http://connect.facebook.net/en_US/all.js"></script> <script language="JavaScript"> FB.init({ appId: '508723992516876', //アプリID status: true, cookie: true, xfbml: true }); window.fbAsyncInit = function() { FB.Canvas.setAutoGrow(); } function sizeChangeCallback() { FB.Canvas.setAutoGrow(); } </script> </body>の直前に <script> FB.Canvas.setAutoGrow({ width: 810, height: 2300 }); </script> cssもだいじ。 html,body{ height:auto; } html { overflow-y : hidden; overflow-x : hidden; }