h1, h2 {
  text-align: center;
}

fieldset {
  width: 15em;
  margin-left: auto;
  margin-right: auto;
}

input{
  float: left;
  clear: left;
}

label {
  float: right;
  clear: right;
  text-align: left;
  width: 85%;
}

button {
  float: left;
  clear: both;
  margin-top: 1em;
}