.photo-thumbnails{
    width:33%;
    display: grid;
    grid-template-columns: 33% 33% 33%;
    }
.photo-page {
    box-sizing: border-box;
    display:grid;
    justify-content: space-around;
    border:solid black 1px;
    border-radius: 3px;
    margin:1px;
    padding:4px;
}
.photo-page img {
    width: 100%;
}
.photo-thumbnails span{
    width: 100%;
    font-weight:bold;
    text-align:center;
    display:inline-block;
}