.widget {
  margin-bottom: 30px;
  height: -webkit-calc(100% - 30px);
  height: calc(100% - 30px);
}
@media (max-width: 480px) {
  .background-bottom .col-xs-6 {
    width: 100%;
  }
  .background-bottom .col-xs-6 + .col-xs-6 {
    margin-top: 20px;
  }
  .avatar-group .counter-icon {
    display: block;
  }
  .avatar-group .counter-icon > i {
    margin: 0 !important;
  }
}