My jquery ui theme don't apply on all pages?

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http://stackoverflow.com – I am writing an app in phonegap. In my app, i have 2 main page and 8 small pages, and i am using jquery ui theme for them. But only 1 page apply the theme. What i am miss?? Please help me! i am new. This is my header: <head> <meta charset="utf-8" /> <title>ListApp</title> <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1" /> <link rel="stylesheet" href="css/style.css" /> <link href="css/jquery-ui.css" rel="stylesheet"> <link href="css/jquery-ui1.css" rel="stylesheet"> <link re (HowTos)