body {
    background-image: url(/img/home.jpg), url(/img/home-background-color.jpg);
    background-repeat: no-repeat, repeat;
    background-position-x: center;
    user-select: none;
}

#start-btn {
    width: 11.5%;
    margin-top: 10%; margin-left: 17%;
}

#credit-btn {
    width: 11.5%;
    margin-top: 5%; margin-left: 17%;
}

#credit-btn:hover,
#start-btn:hover {
    animation: changeBtnSize 0.2s forwards;
}

#credit-btn:not(:hover),
#start-btn:not(:hover) {
    animation: reverseChangeBtnSize 0.2s forwards;
}

@keyframes changeBtnSize {
    from {
        transform: scale(1);
    }
    to {
        transform: scale(1.05);
    }
}

@keyframes reverseChangeBtnSize {
    from {
        transform: scale(1.05);
    }
    to {
        transform: scale(1);
    }
}