html, body
{
    height: 100%;
}
body {
    margin:0;
    background-color: dimgray;
}



.image {
    max-height: 75%;
    width:auto;
    -webkit-border-radius: 10px;
    -moz-border-radius: 10px;
    border-radius: 10px;
    box-shadow: 0 8px 16px 0 rgba(0, 0, 0, 0.2), 0 12px 40px 0 rgba(0, 0, 0, 0.19);
}

.portrait {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    align-content: center;
}