Added style class definitions to *Style.d.ts

components/lib/multiselect/style/MultiSelectStyle.d.ts

@@ -1,3 +1,33 @@
+/**
+ *
+ * MultiSelect is used to select multiple items from a collection.
+ *
+ * [Live Demo](https://www.primevue.org/multiselect/)
+ *
+ * @module multiselectstyle
+ *
+ */
 import { BaseStyle } from '../../base/style';
 
+export enum MultiSelectClasses {
+    root = 'p-multiselect',
+    labelContainer = 'p-multiselect-label-container',
+    label = 'p-multiselect-label',
+    chip = 'p-multiselect-chip',
+    pcChipLabel = 'p-multiselect-chip-label',
+    chipIcon = 'p-multiselect-chip-icon',
+    dropdown = 'p-multiselect-dropdown',
+    loadingIcon = 'p-multiselect-loading-icon',
+    dropdownIcon = 'p-multiselect-dropdown-icon',
+    overlay = 'p-multiselect-overlay',
+    header = 'p-multiselect-header',
+    pcFilterContainer = 'p-multiselect-filter-container',
+    pcFilter = 'p-multiselect-filter',
+    listContainer = 'p-multiselect-list-container',
+    list = 'p-multiselect-list',
+    optionGroup = 'p-multiselect-option-group',
+    option = 'p-multiselect-option',
+    emptyMessage = 'p-multiselect-empty-message'
+}
+
 export interface MultiSelectStyle extends BaseStyle {}