opt-cc/static/src/app/statistic/stats.component.scss

.side-bar {
  width: 20%;
  float: left;

  @media all and (max-width: 959px) {
    width: 100%!important;
  }
}

.collapsed {
  width: 70px;
}

.button-container {
  position: relative;
  z-index: 100;

  & > button {
    position: fixed;
    top: calc(100vh - 35px);
    left: -10px;
    background: #424242;
    border: 1px solid #dadada;
    box-shadow: #ffd740 0 0 3px;
  }
}