<h3>Algeria</h3>

<div class="flag algeria">
  <div class="algeria__moon"></div>
  <div class="algeria__star"></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;
}

.algeria {
  background: linear-gradient(to right, #00a652 50%, #fff 0);
}
.algeria__moon {
  position: absolute;
  inset: 0;
  margin: auto;
  transform: rotate(40deg) translate(8px, -8px);
  height: 80px;
  width: 80px;
  box-shadow: -8px 8px 0 8px #ed1b24;
  border-radius: 50%;
}

.algeria__star {
  position: absolute;
  margin: auto;
  inset: 0;
  transform: rotate(20deg) translate(20px, -10px);
  width: 50px;
  height: 50px;
  background-color: #ed1b24;
  clip-path: polygon(
    50% 0%,
    61% 35%,
    98% 35%,
    68% 57%,
    79% 91%,
    50% 70%,
    21% 91%,
    32% 57%,
    2% 35%,
    39% 35%
  );
}

.algeria__logo {
  position: absolute;
  inset: 0;
  width: 140px;
  margin: auto;
}