.tth-page {
  background-color: #fffef9;
  background-image:
    repeating-linear-gradient(transparent, transparent 39px, #cfe3f7 39px, #cfe3f7 40px);
  background-size: 100% 40px;
  position: relative;
  padding: 40px 32px 40px 64px;
  line-height: 40px;
  min-height: 600px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.08);
  border: 1px solid #e5e7eb;
  border-radius: 6px;
  overflow-wrap: break-word;
  word-wrap: break-word;
  white-space: pre-wrap;
}
.tth-page.tth-margin::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 48px;
  width: 2px;
  background: #f7a8b8;
}
.tth-page.tth-blank {
  background-image: none;
}
.tth-page:focus { outline: none; }
.tth-page:empty:before {
  content: attr(data-placeholder);
  color: #9aa6b2;
}