table {
  border: 0;
  width: 100%;
  background-color: #333;
  border-spacing: 0;
  padding: 0;
  spacing: 0;
  table-layout:fixed;
}
th {
  background-color: #ddd;
  border: 1px solid;
}
td {
  background-color: #fff;
}

table tr td table {
  border: 0;
  width: 100%;
  background-color: #000;
  border-spacing: 1px;
  border-collapse: collapse;
}

table tr td table tr td {
  border: 1px solid;
}
b {
  color: #f00;
}