#landing_header{width:960px;height:600px;margin:0 auto}#landing_register_box{background:url(../img/landing-enroll.png);width:333px;height:150px;position:relative;left:50px;top:107px}#landing_login_box{background:url(../img/landing-login.png);width:333px;height:150px;position:relative;left:50px;top:107px}#landing_videopreview_box{background:url(../img/landing-preview.png);width:333px;height:150px;position:relative;left:50px;top:107px}#landing_webauth_login_box{background:url(../img/landing-login-webauth.png);width:333px;height:150px;position:relative;left:50px;top:230px}