.bg {
    background-image:url(../images/bg.jpg);
}

.home_link,
.home_link a {
    background-image:url(../images/home_link.jpg);
}

.about_us {
    background-image:url(../images/hover_buttons/about_us.jpg);
}
.about_us a {
    background-image:url(../images/buttons/about_us.jpg);
}

.our_belief {
    background-image:url(../images/hover_buttons/our_belief.jpg);
}
.our_belief a {
    background-image:url(../images/buttons/our_belief.jpg);
}

.the_project {
    background-image:url(../images/hover_buttons/the_project.jpg);
}
.the_project a {
    background-image:url(../images/buttons/the_project.jpg);
}

.our_car {
    background-image:url(../images/hover_buttons/our_car.jpg);
}
.our_car a {
    background-image:url(../images/buttons/our_car.jpg);
}

.contact_us {
    background-image:url(../images/hover_buttons/contact_us.jpg);
}
.contact_us a {
    background-image:url(../images/buttons/contact_us.jpg);
}

.media_links {
    background-image:url(../images/hover_buttons/media_links.jpg);
}
.media_links a {
    background-image:url(../images/buttons/media_links.jpg);
}