poa-dapps-keys-generation/src/Header.js

import React from "react";
import helpers from "./helpers";

let Header = ({ netId }) => {
  const thisIsTestnet = helpers.isTestnet(netId);
  const headerClassName = thisIsTestnet ? "sokol" : "";
  const logoClassName = thisIsTestnet ? "header-logo-sokol" : "header-logo";
  return (
    <header className={`header ${headerClassName}`}>
      <div className="container">
        <a href="/poa-dapps-keys-generation" className={logoClassName} />
      </div>
    </header>
  );
};

export default Header;