.photogrid {
    display: flex;
    flex-flow: row wrap;
}

.photoitem {
    width: 30%;
    aspect-ratio: 1/1;
    border-width: 1px;
    padding: 1px 1px 1px 1px;
}

.thumbnail{
    max-width: 100%;
    height: auto;
}

.photoitem>p{
    line-height: 0px;
}