div {
  border: 1px solid #a52a2a;
}
body,
body > div {
  margin: 5px 10px;
}
body > div {
  width: 100px;
  height: 200px;
  font-size: 14px;
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  border-radius: 5px;
  z-index: 1;
}
@media (max-width: 300px) {
  body > div {
    color: #000;
  }
}
@media (max-width: 300px) and (min-width: 100px), (max-width: 300px) and (min-height: 1200px) {
  body > div {
    color: #100;
  }
}
div:hover {
  background: #ff0;
}
div:hover {
  background: #00f;
}
span {
  color: #a52a2a;
}
table tr:nth-child(1) {
  height: 15px;
}
table tr:nth-child(2) {
  height: 30px;
}
table tr:nth-child(3) {
  height: 45px;
}
table tr:nth-child(4) {
  height: 60px;
}
table tr:nth-child(5) {
  height: 75px;
}