<h3>Greece</h3>

<div class="flag greece">
  <div class="greece__top_left">
    <div></div>
    <div></div>
    <div></div>
    <div></div>
  </div>
</div>

* {
  box-sizing: border-box;
  margin: 0;
}

body {
  width: 100%;
  height: 100vh;
  background-color: rgb(221, 239, 255);
  display: grid;
  place-items: center;
  font-family: cursive;
  font-weight: bold;
}

h3 {
  position: absolute;
  text-align: center;
  top: 20px;
}

/* Main Style Stars from here  */
.flag {
  position: relative;
  width: 300px;
  height: 200px;
  box-shadow: 0 0 1px rgba(0, 0, 0, 0.5);
  overflow: hidden;
}
.greece {
  background: repeating-linear-gradient(
    #055eb2,
    #055eb2 11.11%,
    #fff 11.11%,
    #fff 22.22%
  );
}

.greece__top_left {
  width: 138px;
  height: 111.33px;
  background-color: white;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 25px;
}

.greece__top_left > * {
  background-color: #055eb2;
}