Unable to style premade components

[Vibgitcode27]

 const items: MenuProps['items'] = [
        {
            key: '1',
            label: (
                <Space style={{ border : "2px solid red" , borderRadius : "50%"}}>
                    <FacebookShare
                        windowHeight={20}
                        url={"https://nextjs.org/"}
                        title={'Share your views on what else should I try CraveFeed'}
                        hashtag={'#cravefeed'}
                        className="share-button"
                    >
                    </FacebookShare>
                </Space>
            ),
        },
        {
            key: '2',
            label: (
            <Space className="space-container">
                    <WhatsappShare
                        windowHeight={20}
                        url={"https://nextjs.org/"}
                        title={'Share your views on what else should I try on CraveFeed'}
                        className="share-button"
                    >
                    </WhatsappShare>
                </Space>
            ),
        },
    ];
    ```
    
    How can I Style these buttons ? <WhatsappShare/>