Unable to Fullscreen using React

[alexedtionweb]

I'm trying to use this method inside a React App
.withTarget("Test")
but it no works, how to set the chat fullscreen using react?

example:
import React from "react";
import ReactDOM from "react-dom";
import { BlipChat } from "blip-chat-widget";
class App extends React.Component {
componentDidMount() {
var BlipClient = new BlipChat()
.withAppKey(
"AppKey"
)
.withAccount({
fullName: "UserName",
extras: {
code: ""
}
})
.withTarget("Test")
.withEventHandler(BlipChat.CREATE_ACCOUNT_EVENT, function() {
BlipClient.sendMessage("");
});
BlipClient.build();
}
render() {
return (
<>

</>
);
}
}

const rootElement = document.getElementById("root");
ReactDOM.render(, rootElement);