html,
body {
    background-image: url(https://c.tenor.com/gWJRoOSx7FIAAAAC/space-kitten.gif);
    background-size: 200px;
}

img {
    max-width: 250px;
    cursor: pointer;
    vertical-align: middle;
    align-self: center;
    background-color: white;
}

.catisland {
    width: 350px !important;
    max-width: 350px !important;
}