body {
  margin: 0;
  padding: 0;
}
table {
  border: 1px solid black;
  width: 30%;
}
thead tr:first-child {
  background-color: #888888;
  color: white;
  font-weight: bold;
  padding: 10px;
}
td {
  border: 1px solid white;
  padding: 10px;
}
#maintable tr:nth-child(3) td:nth-child(2) {
  background-color: #ffbbbb;
}

tr:nth-child(odd) {
  background-color: #c0c0c0;
}
tr:nth-child(even) {
  background-color: #efefef;
}
/* tr:last-child td:nth-child(2) {
  background-color: #ffbbbb;
} */
#maintable tr:last-child td:not(:nth-child(2)) {
  background-color: #efefef;
}
#maintable tr:last-child td:nth-child(2) {
  background-color: #ffbbbb;
}