multiple-select/dist/themes/bootstrap.css

Multiple select is a jQuery plugin to select multiple elements with checkboxes :).

.ms-parent.form-control {
  padding: 0;
}

.ms-parent.form-control .ms-choice {
  height: 100%;
  border: 0;
}

.ms-parent.form-control .ms-choice > span {
  top: 50%;
  transform: translateY(-50%);
}

.ms-parent.form-control.form-control-sm .ms-drop input[type=radio],
.ms-parent.form-control.form-control-sm .ms-drop input[type=checkbox] {
  margin-top: 0.4rem;
}

.ms-parent.form-control.form-control-lg .ms-drop input[type=radio],
.ms-parent.form-control.form-control-lg .ms-drop input[type=checkbox] {
  margin-top: 0.5rem;
}

.ms-parent.form-control.ms-dropdown .ms-drop ul > li.group.hide-radio label.optgroup {
  margin-bottom: 0;
  font-size: 87.5%;
  color: #6c757d;
  white-space: nowrap;
  opacity: 1;
}

.ms-parent.form-control.ms-dropdown .ms-drop ul > li.hide-radio.option-level-1 label {
  padding-left: 8px;
}

.ms-parent.form-control.ms-dropdown.ms-dropdown-divider .ms-drop ul > li.group.hide-radio label.optgroup {
  border-top: 1px solid #e9ecef;
}

.ms-parent.form-control.ms-dropdown.ms-dropdown-divider .ms-drop ul > li.group:first-child label.optgroup {
  border-top: none;
}