h1 {
  color: blue;
}

h2 {
  color: deepskyblue;
}

ul:first-of-type li:first-child {
  color: red;
}

ul:first-of-type li {
  color: purple;
}

ul:nth-of-type(2) li {
  color: magenta;
}

ul:nth-of-type(2) li:last-child {
  color: black;
}

ul:nth-of-type(3) a {
  color: blue;
}

ul:nth-of-type(3) li:nth-child(2) a {
  color: purple;
}

ul:nth-of-type(3) li:nth-child(5) a {
  color: purple;
}

input[type="text"] {
  border: 1px solid gray;
}

input[type="button"] {
  background-color: orange;
  border: 1px solid gray;
  width: 150px;
  height: 25px;
}

button {
  background-color: white;
  border: 1px solid gray;
}

input[type="submit"] {
  background-color: green;
  color: white;
  border: 1px solid gray;
}