#plist {
    border-collapse: collapse;
}

#plist thead th {
    padding: 10px;
    border: 1px solid black;
    background-color: lightsteelblue;
    border-collapse: collapse;
}

#puzzles td {
    padding: 10px;
    border: 1px solid black;
    border-collapse: collapse;
}

#detail {
    max-width: 100%;
    height: auto;
}