.header-top {
  height: 20px;

  border-bottom: solid 0.5px silver;
}

.header-middle {
  height: 20px;
  background-color: chocolate;
  color: white;
  font-size: 10px;
  border-bottom: solid 0.5px silver;
}
.header-bottom {
  height: 20px;
  font-size: 10px;
  border-bottom: solid 0.5px silver;
}