text on the center

Hi sir, Please How can i put my text on the center of my box: http://grab.by/yqu4 Please check the link: http://www.idaat.se/%D9%85%D9%83%D8%AA%D8%A8%D8%A9-%D8%A7%D9%84%D9%81%D9%8A%D8%AF%D9%8A%D9%88/ Regards A.J.