How can I style Native component in react Native

Question

I am using a custom Native Component to render video (in a video calling application) and I want to design the video itself in React Native here is code,

import { CustomizedNativeComponent } from './../...';
videoComponent={
                        <CustomizedNativeComponent style = {{ height:'10%', borderColor:'red', borderWidth:'5px' }} />
                    }

I dont see any changes on video , can someone suggest what I am doing wrong here, also I am new to React Native