* { margin:0; padding:0; overflow:auto; }
table{ margin: 0 auto; }
th { width:130px;  text-align:center; border-bottom: 1px solid #ddd; }
td { padding: 8px; text-align:center; border-bottom: 1px solid #ddd; }
tr:hover { background-color: #d4edf8; }