.source-opening-workspace {
  display: flex;
  align-items: flex-start;
  gap: clamp(1rem, 3vw, 3rem);
  box-sizing: border-box;
  width: min(90rem, 100%);
  margin-inline: auto;
  padding: clamp(1rem, 4vw, 3rem);
}

.source-opening-workspace > main {
  flex: 1;
  min-width: 0;
}

.source-opening-workspace > main > .pmx-document,
.source-opening-workspace > main > [data-component="source:content"] > .pmx-document {
  max-width: 42rem;
  margin-inline: auto;
  padding: 0;
}