diff --git a/src/components/SharePopover/README.md b/src/components/SharePopover/README.md
index ec47589a..89290cc6 100644
--- a/src/components/SharePopover/README.md
+++ b/src/components/SharePopover/README.md
@@ -4,22 +4,23 @@ Sharing component
 
 ### PropTypes
 
-| Property         | Type                  | Required | Default          | Description                                                                                                                                                                |
-| :--------------- | :-------------------- | :------- | :--------------- | :------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
-| url              | `String`              | ✔       |                  | share link                                                                                                                                                                 |
-| title            | `String`              |          |                  | link title                                                                                                                                                                 |
-| text             | `String`              |          |                  | link text                                                                                                                                                                  |
-| shareOptions     | `Array<ShareOptions>` |          | `[]`             | share options list                                                                                                                                                         |
-| withCopyLink     | `Boolean`             |          | `true`           | display copy button                                                                                                                                                        |
-| useWebShareApi   | `Boolean`             |          | `false`          | [Web Share API](https://developer.mozilla.org/en-US/docs/Web/API/Navigator/share) usage setting. If turned on default share dialog will be shown (if bbrowser supports it) |
-| placement        | `Array`               |          | `['bottom-end']` | tooltip openening direction                                                                                                                                                |
-| openByHover      | `Boolean`             |          | `true`           | should open tooltip with hover                                                                                                                                             |
-| autoclosable     | `Boolean`             |          | `true`           | should close tooltip when cursor is outside                                                                                                                                |
-| closeDelay       | `Number`              |          | `300`            | delay before tooltip will be hidden when cursor is otside                                                                                                                  |
-| iconSize         | `Number`              |          |                  | icon-control size                                                                                                                                                          |
-| iconClass        | `String`              |          |                  | icon-control mixin                                                                                                                                                         |
-| tooltipClassName | `String`              |          |                  | tooltip mixin                                                                                                                                                              |
-| className        | `String`              |          |                  | css class for control                                                                                                                                                      |
+| Property                | Type                  | Required | Default          | Description                                                                                                                                                                |
+| :---------------------- | :-------------------- | :------- | :--------------- | :------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| url                     | `String`              | ✔       |                  | share link                                                                                                                                                                 |
+| title                   | `String`              |          |                  | link title                                                                                                                                                                 |
+| text                    | `String`              |          |                  | link text                                                                                                                                                                  |
+| shareOptions            | `Array<ShareOptions>` |          | `[]`             | share options list                                                                                                                                                         |
+| withCopyLink            | `Boolean`             |          | `true`           | display copy button                                                                                                                                                        |
+| useWebShareApi          | `Boolean`             |          | `false`          | [Web Share API](https://developer.mozilla.org/en-US/docs/Web/API/Navigator/share) usage setting. If turned on default share dialog will be shown (if bbrowser supports it) |
+| placement               | `Array`               |          | `['bottom-end']` | tooltip openening direction                                                                                                                                                |
+| openByHover             | `Boolean`             |          | `true`           | should open tooltip with hover                                                                                                                                             |
+| autoclosable            | `Boolean`             |          | `true`           | should close tooltip when cursor is outside                                                                                                                                |
+| closeDelay              | `Number`              |          | `300`            | delay before tooltip will be hidden when cursor is otside                                                                                                                  |
+| iconSize                | `Number`              |          |                  | icon-control size                                                                                                                                                          |
+| iconClass               | `String`              |          |                  | icon-control mixin                                                                                                                                                         |
+| tooltipClassName        | `String`              |          |                  | tooltip mixin                                                                                                                                                              |
+| tooltipContentClassName | `String`              |          |                  | tooltip content mixin                                                                                                                                                      |
+| className               | `String`              |          |                  | css class for control                                                                                                                                                      |
 
 ### Examples
 
diff --git a/src/components/SharePopover/SharePopover.scss b/src/components/SharePopover/SharePopover.scss
index 06690686..4c43d010 100644
--- a/src/components/SharePopover/SharePopover.scss
+++ b/src/components/SharePopover/SharePopover.scss
@@ -11,7 +11,8 @@ $block: '.#{variables.$ns}share-popover';
         padding: 8px;
     }
 
-    &__tooltip-content {
+    // for guaranteed popover style override
+    #{$block} &__tooltip-content {
         max-width: none;
     }
 
diff --git a/src/components/SharePopover/SharePopover.tsx b/src/components/SharePopover/SharePopover.tsx
index 8ef9b5a9..cf187b14 100644
--- a/src/components/SharePopover/SharePopover.tsx
+++ b/src/components/SharePopover/SharePopover.tsx
@@ -51,6 +51,8 @@ export interface SharePopoverProps extends ShareListProps, Partial<SharePopoverD
     iconClass?: string;
     /** tooltip mixin */
     tooltipClassName?: string;
+    /** tooltip content mixin */
+    tooltipContentClassName?: string;
     /** sitcher mixin */
     switcherClassName?: string;
     /** custom icon */
@@ -90,6 +92,7 @@ export const SharePopover = (props: SharePopoverProps) => {
         iconSize = sharePopoverDefaultProps.iconSize,
         iconClass,
         tooltipClassName,
+        tooltipContentClassName,
         switcherClassName,
         className,
         direction = sharePopoverDefaultProps.direction,
@@ -160,7 +163,7 @@ export const SharePopover = (props: SharePopoverProps) => {
             content={content}
             className={b(null, className)}
             tooltipClassName={b('tooltip', tooltipClassName)}
-            tooltipContentClassName={b('tooltip-content')}
+            tooltipContentClassName={b('tooltip-content', tooltipContentClassName)}
             onClick={handleClick}
             tooltipId={tooltipId}
             disablePortal