<h3>Burundi</h3>
<div class="flag burundi">
  <div class="burundi__border"></div>
  <img src="https://imgur.com/QcbhN4m.png" alt="" class="burundi__logo" />
</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;
}

.burundi__border {
  border-color: transparent;
  height: 100%;
  border-width: 100px 150px 100px 150px;
  border-color: #ce1126 #1eb53a #ce1126 #1eb53a;
  border-style: solid;
}

.burundi__border::before,
.burundi__border::after {
  position: absolute;
  content: "";
  background-color: white;
  height: 20px;
  width: 100%;
  left: 20px;
  transform: scalex(2) rotate(56deg);
}

.burundi__border::after {
  margin-top: -12px;
  transform: scalex(-2) rotate(53deg);
}

.burundi__logo {
  position: absolute;
  inset: 0;
  margin: auto;
  width: 100px;
}