.new-action {
  height: 75vh;
  max-width: 42ch;
  align-items: center;
  align-content: start;
  margin-left: auto;
  margin-right: auto;
  gap: 2rem;
}

.new-action input[type=submit] { margin-top: 1.5rem; }
.new-action footer, .new-action .flash { text-align: center; }
.new-action .header {
  display: block;
}