.img-logo
{
    border: solid 2px lightgrey;
    margin:20px;
}

.img-logo:hover {
    animation: logo 0.9s both;
}

h1 {
    margin-top:15px;
    margin-bottom:15px;
}

.footer
{
    margin: 20px;
}

.card{
    margin: 20px;
}

.bonus{
    display:none
}

@keyframes logo {
    0% {
        transform: scale3d(1, 1, 1);
    }
    30% {
        transform: scale3d(1.25, 0.75, 1);
    }
    40% {
        transform: scale3d(0.75, 1.25, 1);
    }
    50% {
        transform: scale3d(1.15, 0.85, 1);
    }
    65% {
        transform: scale3d(0.95, 1.05, 1);
    }
    75% {
        transform: scale3d(1.05, 0.95, 1);
    }
    100% {
        transform: scale3d(1, 1, 1);
    }
}

.heartbeat {
    animation: heartbeat 1.5s ease-in-out infinite both;
}

@keyframes heartbeat {
    from {
        transform: scale(1);
        transform-origin: center center;
        animation-timing-function: ease-out;
    }
    10% {
        transform: scale(0.91);
        animation-timing-function: ease-in;
    }
    17% {
        transform: scale(0.98);
        animation-timing-function: ease-out;
    }
    33% {
        transform: scale(0.87);
        animation-timing-function: ease-in;
    }
    45% {
        transform: scale(1);
        animation-timing-function: ease-out;
    }
}