Line two divs side by side with CSS and React

Question

As the image shows, I have two components that I want to be side by side and lined up:

I am using React and the component with Negotiation, frontend, and food has elements passed from another component.

How do I style this so each element (Negotiation, Frontend and food) are separated from each other but still in the same column with news lined up next to it?

My JavaScript:

class Course extends React.Component {
  render() {
    return (
      <div>
        <div className="coursecontent">
          <h3>{this.props.coursename}</h3>
          <h4> {this.props.status} {this.props.progress}</h4>
        </div>
        <button className="coursecontent">Start exercise</button>
      </div>
    );
  }
}

class Welcomebox extends React.Component {
  render() {
    return <h1>Welcome Naomi</h1>;
  }
}

ReactDOM.render(<Welcomebox />, document.getElementById('welcomebox'));

class Coursebox extends React.Component {
  render() {
    return (
      <div className="box-field">
        <Course coursename="Negotiation" progress= "20%" status="Progress"/>
        <Course coursename="Frontend" progress="56%" status="Progress"/>
        <Course coursename="Food" status="Progress" progress="43%"/>
      </div>
    );
  }
}

class Newsbox extends React.Component {
  render() {
    return (
      <div className="box-field" className="newsbox">
        <h3>News</h3>
      </div>
    );
  }
}

class Dashboardbox extends React.Component {
  render() {
    return (
      <div className="dashboardbox">
        <Coursebox />
        <Newsbox />
      </div>
    );
  }
}

ReactDOM.render(<Dashboardbox />, document.getElementById('dashboardbox'));

My CSS:

.box-field,
.newsbox {
  width: 45%;
  background-color: lightgrey;
  font-family: arial;
  margin-left: 30px;
  height: 80%;
  padding: 5px 10px 10px 10px;
  border-radius: 10px;
  display: inline-block;
}

So basically, in between each Course element I would want space (preferably set with Margin), and I want the Newsbox component to line up with the Coursebox component.

Answer 1

Solution to bring new Newsbox component next to Coursebox

import Coursebox from './Coursebox';
import Newsbox  from './Newsbox'
 class ContainerRow extends React.Component {
 render(){
    return (
        <div className='rowC'>
            <Coursebox />
            <Newsbox />
        </div>
    );
    }
 }

CSS

.rowC{display:flex; flex-direction:row;}

Answer 2

Here you go.

const ParentDiv = styled.div`
  & {
    width: 100%;
  }
`;

const ChildDiv = styled.div`
  & {
    display: inline-block;
    vertical-align: text-top;
    margin: 0 auto;
  }
`;