H3 { color: #f0f0f0;
     background-color:#a0c0c0;
     margin: 8px,1px;
     padding:8px;}

table.table {
  border-spacing: 2px;
  background-color:#f0f0f0;
  margin: 8px;
}

pre.list {
  width: 600px;
  margin: 10px;
  padding: 10px;
  background-color: #e0e0e0
}