.warning {
  grid-area: header;
  margin: 0 0 2em 0;
  border: 0.1rem solid rgb(var(--color-text));
  padding: 1em;
  font-size: var(--type-small);
  text-align: center;
}

@supports(display: grid) {

  .warning {
    display: none;
  }

}