do flexbox work in react.js code example

Example: flexbox in react js

import React from "react";

const FlexboxPage = () => {
    return (
      <div className="d-flex p-2 col-example">I'm a flexbox container!</div>
    );
}
export default FlexboxPage;

.col-example{
  padding: 1rem;
  background-color: #33b5e5;
  border: 2px solid #fff;
  color: #fff;
  text-align: center;
}