main {
  max-width: 650px;
}

form {
  width: 90%;
  margin: auto;
}

h1 {
  text-align: center;
}

label {
  font-size: 1.2em;
}

input[type="text"],
input[type="password"] {
  padding: 10px 0;
  width: 100%;
  border: 1px solid;
}

form > div,
.cta-light {
  margin-top: 20px;
}

fieldset:first-of-type {
  margin-bottom: 20px;
}

.back-to-index {
  display: block;
}