DIV.level_left_holder .col-md-3.inactive {
    cursor:pointer;
}
DIV.level_left {
    padding:25px;
    background-color:#eee;
}
DIV.level_right {
    padding:25px;
    background-color:#ddd;
}
DIV.level_left_holder .col-md-3 IMG,
DIV.level_image IMG.img-responsive {
    display:block;
    margin:0 auto;
}