/* page */
html {
  font-size: 62.5%; /* 10px for easier scaling with rem! */
  font-family: sans-serif;
}

body {
  font-size: 1.6rem;
  margin: 0;
}

*, *::before, *::after {
  box-sizing: border-box;
  /* outline: 1px solid red; */
}

.container {
  max-width: 60rem;
  margin-inline: auto;
  padding-inline: 1rem;
}

/* form-fields */
/* zie demo bestanden bij de theorie voor meer CSS ;) */
input:not([type=submit]),
textarea {
  display: block;
  width: 100%;
  max-width: 40rem;
  padding: .75em;
  border: 1px solid #666;
  border-radius: .3rem;
}

label,
input[type=submit] {
  margin-top: 3rem;
}
input[type=submit] {
  padding: .5em 2em;
  cursor: pointer;
}
label {
  display: block;
  margin-bottom: .2em;
  font-weight: bold;
}

.message {
  font-size: 1.4rem;
}
.message.error {
  color: #b90e0a;
}