fieldset.grid {
  padding: 0.5rem;
  border-radius: var(--pico-border-radius);
}

@media (prefers-color-scheme: light) {
  fieldset.grid { background: #eeeeee; }
}

@media (prefers-color-scheme: dark) {
  fieldset.grid { background: var(--pico-form-element-background-color); }
}