.training-courses { background: url(/images/menu/training_courses.jpg) 0px -45px no-repeat; float:left; }
.training-courses a { text-decoration: none; display: block; width: 180px; height:45px; background: url(/images/menu/training_courses.jpg) 0 0 no-repeat; }
.training-courses a.over { background: none; }
.training-courses a:hover { background: none; }

.training-delivery { background: url(/images/menu/training_delivery.jpg) 0px -45px no-repeat; float:left; }
.training-delivery a { text-decoration: none; display: block; width: 180px; height:45px; background: url(/images/menu/training_delivery.jpg) 0 0 no-repeat; }
.training-delivery a.over { background: none; }
.training-delivery a:hover { background: none; } 

.about_us { background: url(/images/menu/about_academy.jpg) 0px -45px no-repeat; float:left; }
.about_us a { text-decoration: none; display: block; width: 180px; height:45px; background: url(/images/menu/about_academy.jpg) 0 0 no-repeat; }
.about_us a.over { background: none; }
.about_us a:hover { background: none; } 

.testimonials { background: url(/images/menu/testimonials.jpg) 0px -45px no-repeat; float:left; }
.testimonials a { text-decoration: none; display: block; width: 180px; height:45px; background: url(/images/menu/testimonials.jpg) 0 0 no-repeat; }
.testimonials a.over { background: none; }
.testimonials a:hover { background: none; } 

.contact_us { background: url(/images/menu/contact_us.jpg) 0px -45px no-repeat; float:left; }
.contact_us a { text-decoration: none; display: block; width: 180px; height:45px; background: url(/images/menu/contact_us.jpg) 0 0 no-repeat; }
.contact_us a.over { background: none; }
.contact_us a:hover { background: none; }