.offerBtn {
    transition: all .3s;
}

.offerBtn:hover {
    opacity: 0.8;
    transform: translateY(5px);
}

.offer01 {
    width: 77%;
    left: 11.5%;
    bottom: 3%;
}

.offer02 {
    width: 38.2%;
    left: 8.5%;
    bottom: 7%;
}

.offer03 {
    width: 38.2%;
    right: 8%;
    bottom: 7%;
}

.offer04 {
    width: 77%;
    left: 11.5%;
    bottom: 15.75%;
}