.offerBtn {
    transition: all .3s;
}

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

.offer01 {
    width: 37.9%;
    left: 10%;
    bottom: 8%;
}

.offer02 {
    width: 37.9%;
    right: 11.5%;
    bottom: 8%;
}

.offer03 {
    width: 73.7%;
    left: 12%;
    bottom: 6%;
}

.offer04 {
    width: 73.7%;
    left: 12%;
    bottom: 16%;
}