h1 {
  text-align: center;
}

fieldset{
  width: 20em;
  background-color: #EEEEFF;
  margin-left: auto;
  margin-right: auto;     
}
      
input {
    display: block;
    margin-left: auto;
    margin-right: auto;
    width: 80%;
    text-align: center;
} 

label {
  display: block;
  font-weight: bold;
  margin-left: auto;
  margin-right: auto;
  width: 100%;
  text-align: center;
}