body {
  font-family: Verdana;
  font-size: 11px;
}

h1 {
  font-size: 11px;
  margin-bottom: 5px;
}

input {
  width: 150px;
}

button {
  margin-top: 5px;
}

p {
  margin-top: 3px;
  color: #d21515;
}

span {
  color: #d21515;
  margin-left: 5px;
  display: inline-block;
}

iframe {
  border: 1px solid gray;
  padding: 0;
  margin: 10px 0 0 10px;
}

iframe.level-0 {
  width: 625px;
  height: 320px;
  background: #fffef8;
}

iframe.level-1 {
  width: 280px;
  height: 210px;
  background: #fff9cb;
}

iframe.level-2 {
  width: 240px;
  height: 140px;
  background: #ffe89d;
}