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  DEMO   CODE <style> Theme hoa hồng blog {} T ạo hình nền đứng yên trang đọc nội dung entry {} body {background-image:url( http://i1259.photobucket.com/albums/ii558/hopphoco/Anhdoimau.gif );background-attachment:fixed;} #hd { margin-bottom:14px;border-bottom:1px solid white;background:transparent url( http://i1259.photobucket.com/albums/ii558/hopphoco/PHOTO%20HOA%20HONG/bg11d.jpg ) repeat-y center;height:585px;} #doc3 { background:transparent url( http://i1259.photobucket.com/albums/ii558/hopphoco/PHOTO%20HOA%20HONG/bg2oj.jpg ) repeat-y top center;} .sidebar { width:230px;} #bd { width:900px;} .two-col-left #yui-main .yui-b { margin-left:230px;} #ft { background:#ffffff url( http://i1259.photobucket.com/albums/ii558/hopphoco/PHOTO%20HOA%20HONG/bg3r.jpg ) no-repeat bottom center;height: