body {
  background-color: black;
  color: white;
  font-family: sans-serif;
  font-size: 16px;
  margin: 150px 20px 0 20px;
  max-height: 100px;
  box-sizing: border-box;
}

hr {
  margin: 20px 0 25px 0;
}

input {
  box-sizing: border-box;
  background-color: black;
  border-color: lightslategray;
  color: white;
  width: 100%;
  padding: 1em;
  margin-bottom: 10px;
  font-size: 16px;
}

label {
  display: inline-block;
  margin-left: 5px;
  margin-bottom: 5px;
  font-weight: bold;
  font-size: 16px;
}

h1 {
  position: absolute;
  top: 20px;
  left: 25px;
}