html {
    font-size: 62.5%;
}
.column-container {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    
    padding: 1rem;
}
.column {
    padding: 1.6rem;
    background-color: #fff;
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: 450px;
}
.column input, .column button {
  margin-bottom: 1rem;
}
.column input[type=submit] {
    width: 100%;
}