edlp_d8/core/themes/seven/css/components/entity-meta.css

/**
 * Entity meta settings.
 */
.entity-meta {
  background-color: #edede8;
  border-left: 1px solid #bfbfbf;
  border-right: 1px solid #bfbfbf;
  border-radius: 3px;
  box-shadow: inset 0 0 5px rgba(0, 0, 0, 0.15);
}
.entity-meta__header,
.entity-meta .seven-details {
  background-color: #fcfcfa;
  border-top: 1px solid #bfbfbf;
  border-bottom: 1px solid #bfbfbf;
}
.entity-meta__header {
  padding: 1em 1.5em;
  border-radius: 3px 3px 0 0;
}
.entity-meta__title {
  font-size: 1.231em;
  font-weight: bold;
  text-shadow: 0 1px 0 #fff;
  margin: 0.25em 0;
}
.entity-meta__header .form-item {
  margin: 0.25em 0;
}
.entity-meta__last-saved {
  font-style: italic; /* As-designed, but really: why is this italic? */
}
.entity-meta .seven-details {
  border-left: 0;
  border-right: 0;
  border-top: 1px solid #fff;
  margin: 0;
  border-radius: 0;
}
.entity-meta .seven-details:last-child {
  border-radius: 0 0 3px 3px;
}
.entity-meta .seven-details[open] {
  background-color: transparent;
  background-image: -webkit-linear-gradient(top, rgba(0, 0, 0, 0.125), transparent 4px);
  background-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.125), transparent 4px);
  border-top-width: 0;
  padding-top: 1px;
}
.entity-meta .seven-details[open] + .seven-details[open] {
  background-image: none;
  border-top-width: 1px;
  padding-top: 0;
}
.entity-meta .seven-details > .seven-details__wrapper {
  padding-top: 0;
}
.entity-meta .seven-details > summary {
  padding: 0.85em 1.25em;
  text-shadow: 0 1px 0 white;
}

/**
 * Hide JS summary from the details polyfill to make it consistent with native
 * details elements.
 *
 * @todo Consider removing this after https://www.drupal.org/node/2493957 has
 *   been solved.
 */
.entity-meta .seven-details .summary {
  display: none;
}