html
<!DOCTYPE html>
<html lang="ko">
<head>
  <meta charset="UTF-8">
  <title>CSS Flag Project</title>
  <style>
    
    
    .flag{
      background-color:#ce1126;
      width: 900px;
      height: 600px;
    }
    
   .flag > div {
      background-color:#002868;
      height: 300px;
      width: 900px;
      position:absolute;
      top:150px;
      
    }
  .flag > div > div {
    background-color: white;
      position: absolute;
      height: 200px;
      width: 200px;
      border-radius: 50%;
      top: 50px;
      left: 350px;
  }
  p{
    font-family: 'Source Sans Pro', sans-serif;
    color : white;
    font-size: 5rem;
    text-align: center;
    margin: 0;
    padding: 0;
  }
  .flag > div > div > p {
    color : black;
  }
    
  </style>
  <link rel="preconnect" href="https://fonts.googleapis.com">
  <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
  <link href="https://fonts.googleapis.com/css2?family=Source+Sans+Pro&display=swap" rel="stylesheet">
</head>
  
<body>
  <div class="flag">
    <p>The Flag</p>
    <div>
      <div>
        <p>of Laos</p>
      </div>
    </div>
  </div>
</body>
</html>
Result
