#log {
    width: 75%;
    margin: 0 auto;
}

table {
    font-family: Arial, Helvetica, sans-serif;
    border-collapse: collapse;
    width: 75%;
    margin: 0 auto;
}

td, th {
    border: 1px solid #ddd;
    padding: 3px;
}

th, thead {
    padding-top: 3px;
    padding-bottom: 3px;
    text-align: left;
    background: #1f618d ;
    background-color: #1f618d ;
    color: white;
}

tr:nth-child(even){background-color: #f2f2f2;}

tbody tr:hover {background-color: #ddd;}

tr { text-align: center;}

.node {
    display: inline-block;
    padding: 10px;
    margin: 10px;
    background-color: #f4f4f4;
    border: 1px solid #ddd;
    border-radius: 5px;
}