body.page-messages {
  min-height: 100vh;
  height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

body.page-messages .topbar {
  flex: 0 0 auto;
}

body.page-messages .message-page {
  align-items: stretch;
  flex: 1 1 auto;
  min-height: 0;
  height: auto;
  padding-bottom: 24px;
}