td.highlight {
  background-color: orange !important;
}

table {
  border-collapse: collapse;
  width: 100%;
}
th,
td {
  border: 1px solid #ddd;
  padding: 8px;
  position: relative;
}
th.resizer {
  position: absolute;
  right: 0;
  top: 0;
  width: 5px;
  cursor: col-resize;
  user-select: none;
  height: 100%;
}