div#page {
  overflow: visible;
  margin: 0 20px;
  padding: 0 10px;

  aside#sidebar > section {
    margin-bottom: 1em;
  }

  section#content {
    overflow: visible;
  }
}

footer#page-footer {
  width: 100%;
  margin-top: 1em;
  text-align: center;
  padding: 1em 0 1em;
  border-top: 1px solid var(--footer-border-color);

  .social-icon img {
    vertical-align: bottom;
    margin: 0 0.1em;
    height: 16px;
  }
}

.sidebar-container {
  display: flex;

  #sidebar {
    flex: 0;
    min-width: 20em;
  }

  #content {
    flex: 1;
    padding-left: 1em;
    min-width: 0;
  }

  @media (max-width: 660px) {
    flex-direction: column;

    #content {
      order: 1;
      padding: 0;
    }

    #sidebar {
      order: 2;
    }
  }
}

/* A container for the main <h1> tag, with optional right-aligned action buttons */
div.page-heading {
  display: flex;
  margin-bottom: 1em;

  h1 {
    flex-grow: 1;
    line-height: 1em;
  }

  a {
    align-self: center;
  }
}