html, body, #container {
  padding: 0;
  margin: 0;
  background-color: rgb(244, 244, 244);
  font-size: 12px;
  color: #333;
  height: 100%;
}

.page-wrapper {
  height: 100%;
  padding: 20px;
  display: flex;
  flex-direction: column;
  .tab-pane {
    flex: 1;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: space-between;
  }
}