.polaroid img {
    width: 100%;
    border-radius: 25px 25px 0 0;
    height: 100%;
}

.polaroid {
    height: auto;
    width: 500px;
    margin: auto;
    background-color: white;
    border-radius: 25px;
    box-shadow: 2px 4px 8px 3px Gainsboro;
}

.caption {
    padding: 0 20px 20px 20px;
    font-size: 1em;
}