ensl.org/app/assets/stylesheets/layout/_sidebar.scss

#sidebar {

  .widget {
    margin-bottom: em(20);
    padding: em(20);
    background: $light-gray;

    h4 {
      margin-bottom: 20px;
    }

    .widget-content-wrapper {
      font-size: em(14);
    }
  }

  .calendar {
    max-height: 500px;
    overflow-x: scroll;

    .separator {
      color: white;
      background: #5a9aa8;
      padding: em(12) em(24);
      margin: 0 -20px;
      margin-bottom: em(12);
    }
  }
}