docs: improve border description

Author: gabrieljablonski

docs/docs/options.mdx

@@ -114,11 +114,11 @@ import { Tooltip } from 'react-tooltip';
 | `closeOnEsc`       | `boolean`                  | no       | `false`                   | `true` `false`                                    | Pressing escape key will close the tooltip                                                                                                                      |
 | `closeOnScroll`    | `boolean`                  | no       | `false`                   | `true` `false`                                    | Scrolling will close the tooltip (for this to work, scroll element must be either the root html tag, the tooltip parent, or the anchor parent)                  |
 | `closeOnEsc`       | `boolean`                  | no       | `false`                   | `true` `false`                                    | Resizing the window will close the tooltip                                                                                                                      |
-| `style`            | `CSSProperties`            | no       |                           | a React inline style                              | Add inline styles directly to the tooltip                                                                                                                       |
+| `style`            | `CSSProperties`            | no       |                           | a CSS style object                                | Add inline styles directly to the tooltip                                                                                                                       |
 | `position`         | `{ x: number; y: number }` | no       |                           | any `number` value for both `x` and `y`           | Override the tooltip position on the DOM                                                                                                                        |
 | `isOpen`           | `boolean`                  | no       | handled by internal state | `true` `false`                                    | The tooltip can be controlled or uncontrolled, this attribute can be used to handle show and hide tooltip outside tooltip (can be used **without** `setIsOpen`) |
 | `setIsOpen`        | `function`                 | no       |                           |                                                   | The tooltip can be controlled or uncontrolled, this attribute can be used to handle show and hide tooltip outside tooltip                                       |
 | `afterShow`        | `function`                 | no       |                           |                                                   | A function to be called after the tooltip is shown                                                                                                              |
 | `afterHide`        | `function`                 | no       |                           |                                                   | A function to be called after the tooltip is hidden                                                                                                             |
 | `middlewares`      | `Middleware[]`             | no       |                           | array of valid `floating-ui` middlewares          | Allows for advanced customization. Check the [`floating-ui` docs](https://floating-ui.com/docs/middleware) for more information                                 |
-| `border`           | `string`                   | no       |                           | a React border style                              | Change style of the tooltip border including arrows                                                                                                             |
+| `border`           | `CSSProperties['border']`  | no       |                           | a CSS border style                                | Change the style of the tooltip border (including the arrow)                                                                                                    |