framework/less/common/AlertManager.less

.AlertManager {
  position: fixed;
  bottom: 20px;
  left: 20px;
  z-index: var(--zindex-alerts);

  .Alert {
    display: inline-block;
    margin-top: 20px;
    box-shadow: 0 2px 6px var(--shadow-color);
  }
}