#photos {
    border-collapse: collapse;
    width: 100%;
	text-align: center;
}

#photos td, #photos th {
    border: 0px solid #ddd;
    padding: 3px;
	text-align: center;
}

#photos tr:nth-child(even){background-color: #fff;}

#photos td:hover {background-color: #ddd;}

#photos th {
    padding-top: 12px;
    padding-bottom: 12px;
    text-align: left;
    background-color: #4CAF50;
    color: white;
}
</style>