.bg-bike {
    background-image: url("../img/photography/man_on_bike.JPG");
}

.bg-students {
    background-image: url("../img/photography/students.JPG");
}

.bg-tower {
    background-image: url("../img/photography/tower.JPG");
}

.bg-feet {
    background-image: url("../img/photography/feet.JPG");
}

.bg-wall {
    background-image: url("../img/photography/wall.JPG");
}


.bg-water {
    background-image: url("../img/photography/water.JPG");
}