.icon-big-chat { background-image: url('png/big-chat.png'); background-repeat: no-repeat; }

.icon-big-energy { background-image: url('png/big-energy.png'); background-repeat: no-repeat; }

.icon-big-leaf { background-image: url('png/big-leaf.png'); background-repeat: no-repeat; }

.icon-big-locations { background-image: url('png/big-locations.png'); background-repeat: no-repeat; }

.icon-big-mushroom { background-image: url('png/big-mushroom.png'); background-repeat: no-repeat; }

.icon-big-people { background-image: url('png/big-people.png'); background-repeat: no-repeat; }

.icon-big-pollution { background-image: url('png/big-pollution.png'); background-repeat: no-repeat; }

.icon-big-recycling { background-image: url('png/big-recycling.png'); background-repeat: no-repeat; }

.icon-big-tonnage { background-image: url('png/big-tonnage.png'); background-repeat: no-repeat; }

.icon-big-truckloads { background-image: url('png/big-truckloads.png'); background-repeat: no-repeat; }

.icon-big-world { background-image: url('png/big-world.png'); background-repeat: no-repeat; }