.silly-home-page-images {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}
.silly-image {
    margin-left: 2em;
    margin-right: 2em;
    -webkit-user-drag: none;
    -moz-user-select: none;
    user-select: none;
    width: 15em;
}