How change font-family (font-family.ttf from local directory) of react-native webview

I am using react-native webview to display some web content in myreact-native app. and my app font-family and webviewfont-family is different.I want to change webview font-family from app.

Is there any method to change font-family of webview (custom-font-from-local-directory), please help me.. Thanks