diff --git a/components/lib/confirmdialog/BaseConfirmDialog.vue b/components/lib/confirmdialog/BaseConfirmDialog.vue
index b7b3a2615..0a4915133 100644
--- a/components/lib/confirmdialog/BaseConfirmDialog.vue
+++ b/components/lib/confirmdialog/BaseConfirmDialog.vue
@@ -2,6 +2,7 @@
 import BaseComponent from 'primevue/basecomponent';
 
 const classes = {
+    root: 'p-confirm-dialog',
     icon: ({ instance }) => ['p-confirm-dialog-icon', instance.confirmation ? instance.confirmation.icon : null],
     message: 'p-confirm-dialog-message',
     rejectButton: ({ instance }) => ['p-confirm-dialog-reject', instance.confirmation ? instance.confirmation.rejectClass || 'p-button-text' : null],
diff --git a/components/lib/confirmdialog/ConfirmDialog.vue b/components/lib/confirmdialog/ConfirmDialog.vue
index 11d22db98..0e6249cc9 100644
--- a/components/lib/confirmdialog/ConfirmDialog.vue
+++ b/components/lib/confirmdialog/ConfirmDialog.vue
@@ -2,7 +2,7 @@
     <CDialog
         v-model:visible="visible"
         role="alertdialog"
-        class="p-confirm-dialog"
+        :class="cx('root')"
         :modal="true"
         :header="header"
         :blockScroll="blockScroll"
@@ -16,7 +16,7 @@
     >
         <template v-if="!$slots.message">
             <slot name="icon">
-                <component v-if="$slots.icon" :is="$slots.icon" class="p-confirm-dialog-icon" :class="cx('icon')" />
+                <component v-if="$slots.icon" :is="$slots.icon" :class="cx('icon')" />
                 <span v-else-if="confirmation.icon" :class="cx('icon')" v-bind="ptm('icon')" />
             </slot>
             <span :class="cx('message')" v-bind="ptm('message')">{{ message }}</span>
diff --git a/components/lib/overlaypanel/BaseOverlayPanel.vue b/components/lib/overlaypanel/BaseOverlayPanel.vue
new file mode 100644
index 000000000..d754c9341
--- /dev/null
+++ b/components/lib/overlaypanel/BaseOverlayPanel.vue
@@ -0,0 +1,140 @@
+<script>
+import BaseComponent from 'primevue/basecomponent';
+import { useStyle } from 'primevue/usestyle';
+
+const styles = `
+.p-overlaypanel {
+    position: absolute;
+    margin-top: 10px;
+    top: 0;
+    left: 0;
+}
+
+.p-overlaypanel-flipped {
+    margin-top: 0;
+    margin-bottom: 10px;
+}
+
+.p-overlaypanel-close {
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    overflow: hidden;
+    position: relative;
+}
+
+/* Animation */
+.p-overlaypanel-enter-from {
+    opacity: 0;
+    transform: scaleY(0.8);
+}
+
+.p-overlaypanel-leave-to {
+    opacity: 0;
+}
+
+.p-overlaypanel-enter-active {
+    transition: transform 0.12s cubic-bezier(0, 0, 0.2, 1), opacity 0.12s cubic-bezier(0, 0, 0.2, 1);
+}
+
+.p-overlaypanel-leave-active {
+    transition: opacity 0.1s linear;
+}
+
+.p-overlaypanel:after,
+.p-overlaypanel:before {
+    bottom: 100%;
+    left: calc(var(--overlayArrowLeft, 0) + 1.25rem);
+    content: ' ';
+    height: 0;
+    width: 0;
+    position: absolute;
+    pointer-events: none;
+}
+
+.p-overlaypanel:after {
+    border-width: 8px;
+    margin-left: -8px;
+}
+
+.p-overlaypanel:before {
+    border-width: 10px;
+    margin-left: -10px;
+}
+
+.p-overlaypanel-flipped:after,
+.p-overlaypanel-flipped:before {
+    bottom: auto;
+    top: 100%;
+}
+
+.p-overlaypanel.p-overlaypanel-flipped:after {
+    border-bottom-color: transparent;
+}
+
+.p-overlaypanel.p-overlaypanel-flipped:before {
+    border-bottom-color: transparent;
+}
+`;
+
+const classes = {
+    root: ({ instance }) => [
+        'p-overlaypanel p-component',
+        {
+            'p-input-filled': instance.$primevue.config.inputStyle === 'filled',
+            'p-ripple-disabled': instance.$primevue.config.ripple === false
+        }
+    ],
+    content: 'p-overlaypanel-content',
+    closeButton: 'p-overlaypanel-close p-link',
+    closeIcon: ({ props }) => ['p-overlaypanel-close-icon ', props.closeIcon]
+};
+
+const { load: loadStyle } = useStyle(styles, { id: 'primevue_overlaypanel_style', manual: true });
+
+export default {
+    name: 'BaseOverlayPanel',
+    extends: BaseComponent,
+    props: {
+        dismissable: {
+            type: Boolean,
+            default: true
+        },
+        showCloseIcon: {
+            type: Boolean,
+            default: false
+        },
+        appendTo: {
+            type: String,
+            default: 'body'
+        },
+        baseZIndex: {
+            type: Number,
+            default: 0
+        },
+        autoZIndex: {
+            type: Boolean,
+            default: true
+        },
+        breakpoints: {
+            type: Object,
+            default: null
+        },
+        closeIcon: {
+            type: String,
+            default: undefined
+        }
+    },
+    css: {
+        classes
+    },
+    watch: {
+        isUnstyled: {
+            immediate: true,
+            handler(newValue) {
+                !newValue && loadStyle();
+            }
+        }
+    }
+};
+</script>
diff --git a/components/lib/overlaypanel/OverlayPanel.d.ts b/components/lib/overlaypanel/OverlayPanel.d.ts
index 4a1a4a65a..82d7bf452 100755
--- a/components/lib/overlaypanel/OverlayPanel.d.ts
+++ b/components/lib/overlaypanel/OverlayPanel.d.ts
@@ -126,6 +126,11 @@ export interface OverlayPanelProps {
      * @type {OverlayPanelPassThroughOptions}
      */
     pt?: OverlayPanelPassThroughOptions;
+    /**
+     * When enabled, it removes component related styles in the core.
+     * @defaultValue false
+     */
+    unstyled?: boolean;
 }
 
 /**
diff --git a/components/lib/overlaypanel/OverlayPanel.vue b/components/lib/overlaypanel/OverlayPanel.vue
index 7bc3cf126..323ab8437 100755
--- a/components/lib/overlaypanel/OverlayPanel.vue
+++ b/components/lib/overlaypanel/OverlayPanel.vue
@@ -1,13 +1,13 @@
 <template>
     <Portal :appendTo="appendTo">
         <transition name="p-overlaypanel" @enter="onEnter" @leave="onLeave" @after-leave="onAfterLeave">
-            <div v-if="visible" :ref="containerRef" v-focustrap role="dialog" :class="containerClass" :aria-modal="visible" @click="onOverlayClick" v-bind="{ ...$attrs, ...ptm('root') }">
-                <div class="p-overlaypanel-content" @click="onContentClick" @mousedown="onContentClick" @keydown="onContentKeydown" v-bind="ptm('content')">
+            <div v-if="visible" :ref="containerRef" v-focustrap role="dialog" :aria-modal="visible" @click="onOverlayClick" :class="cx('root')" v-bind="{ ...$attrs, ...ptm('root') }">
+                <div :class="cx('content')" @click="onContentClick" @mousedown="onContentClick" @keydown="onContentKeydown" v-bind="ptm('content')">
                     <slot></slot>
                 </div>
-                <button v-if="showCloseIcon" v-ripple class="p-overlaypanel-close p-link" :aria-label="closeAriaLabel" type="button" autofocus @click="hide" @keydown="onButtonKeydown" v-bind="ptm('closeButton')">
+                <button v-if="showCloseIcon" v-ripple :class="cx('closeButton')" :aria-label="closeAriaLabel" type="button" autofocus @click="hide" @keydown="onButtonKeydown" v-bind="ptm('closeButton')">
                     <slot name="closeicon">
-                        <component :is="closeIcon ? 'span' : 'TimesIcon'" :class="['p-overlaypanel-close-icon ', closeIcon]" v-bind="ptm('closeIcon')"></component>
+                        <component :is="closeIcon ? 'span' : 'TimesIcon'" :class="cx('closeIcon')" v-bind="ptm('closeIcon')"></component>
                     </slot>
                 </button>
             </div>
@@ -16,7 +16,7 @@
 </template>
 
 <script>
-import BaseComponent from 'primevue/basecomponent';
+import BaseOverlayPanel from './BaseOverlayPanel';
 import FocusTrap from 'primevue/focustrap';
 import TimesIcon from 'primevue/icons/times';
 import OverlayEventBus from 'primevue/overlayeventbus';
@@ -26,39 +26,9 @@ import { ConnectedOverlayScrollHandler, DomHandler, UniqueComponentId, ZIndexUti
 
 export default {
     name: 'OverlayPanel',
-    extends: BaseComponent,
+    extends: BaseOverlayPanel,
     inheritAttrs: false,
     emits: ['show', 'hide'],
-    props: {
-        dismissable: {
-            type: Boolean,
-            default: true
-        },
-        showCloseIcon: {
-            type: Boolean,
-            default: false
-        },
-        appendTo: {
-            type: String,
-            default: 'body'
-        },
-        baseZIndex: {
-            type: Number,
-            default: 0
-        },
-        autoZIndex: {
-            type: Boolean,
-            default: true
-        },
-        breakpoints: {
-            type: Object,
-            default: null
-        },
-        closeIcon: {
-            type: String,
-            default: undefined
-        }
-    },
     data() {
         return {
             visible: false
@@ -184,7 +154,7 @@ export default {
             this.container.style.setProperty('--overlayArrowLeft', `${arrowLeft}px`);
 
             if (containerOffset.top < targetOffset.top) {
-                DomHandler.addClass(this.container, 'p-overlaypanel-flipped');
+                !this.isUnstyled && DomHandler.addClass(this.container, 'p-overlaypanel-flipped');
             }
         },
         onContentKeydown(event) {
@@ -303,15 +273,6 @@ export default {
         }
     },
     computed: {
-        containerClass() {
-            return [
-                'p-overlaypanel p-component',
-                {
-                    'p-input-filled': this.$primevue.config.inputStyle === 'filled',
-                    'p-ripple-disabled': this.$primevue.config.ripple === false
-                }
-            ];
-        },
         attributeSelector() {
             return UniqueComponentId();
         },
@@ -329,78 +290,3 @@ export default {
     }
 };
 </script>
-
-<style>
-.p-overlaypanel {
-    position: absolute;
-    margin-top: 10px;
-    top: 0;
-    left: 0;
-}
-
-.p-overlaypanel-flipped {
-    margin-top: 0;
-    margin-bottom: 10px;
-}
-
-.p-overlaypanel-close {
-    display: flex;
-    justify-content: center;
-    align-items: center;
-    overflow: hidden;
-    position: relative;
-}
-
-/* Animation */
-.p-overlaypanel-enter-from {
-    opacity: 0;
-    transform: scaleY(0.8);
-}
-
-.p-overlaypanel-leave-to {
-    opacity: 0;
-}
-
-.p-overlaypanel-enter-active {
-    transition: transform 0.12s cubic-bezier(0, 0, 0.2, 1), opacity 0.12s cubic-bezier(0, 0, 0.2, 1);
-}
-
-.p-overlaypanel-leave-active {
-    transition: opacity 0.1s linear;
-}
-
-.p-overlaypanel:after,
-.p-overlaypanel:before {
-    bottom: 100%;
-    left: calc(var(--overlayArrowLeft, 0) + 1.25rem);
-    content: ' ';
-    height: 0;
-    width: 0;
-    position: absolute;
-    pointer-events: none;
-}
-
-.p-overlaypanel:after {
-    border-width: 8px;
-    margin-left: -8px;
-}
-
-.p-overlaypanel:before {
-    border-width: 10px;
-    margin-left: -10px;
-}
-
-.p-overlaypanel-flipped:after,
-.p-overlaypanel-flipped:before {
-    bottom: auto;
-    top: 100%;
-}
-
-.p-overlaypanel.p-overlaypanel-flipped:after {
-    border-bottom-color: transparent;
-}
-
-.p-overlaypanel.p-overlaypanel-flipped:before {
-    border-bottom-color: transparent;
-}
-</style>