<h3>South Africa</h3>

<div class="flag south_africa">
  <div class="south_africa__bottom_bg_shape"></div>
  <div class="south_africa__bottom_shape"></div>

  <div class="south_africa__top_bg_shape"></div>
  <div class="south_africa__top_shape"></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;
}

.south_africa {
  background: #007847;
}

/* Black and Yellow Triangle */
.south_africa::before,
.south_africa::after {
  position: absolute;
  content: "";
  top: 12%;
  border: 75px solid transparent;
  border-left: 112px solid #ffb915;
}

/* Black Triangle */
.south_africa::after {
  top: 20%;
  border-width: 60px 90px;
  border-left-color: black;
}

.south_africa__bottom_bg_shape,
.south_africa__bottom_shape,
.south_africa__top_bg_shape,
.south_africa__top_shape {
  position: absolute;
  right: -1px;
  bottom: 0;
  width: 240px;
  height: 64px;
  scale: 1.2;
  background-color: white;
  clip-path: polygon(40% 0, 100% 0, 100% 100%, 0 100%);
}

/* Top Red Shape */
.south_africa__top_bg_shape,
.south_africa__top_shape {
  transform: scaley(-1);
  top: 0;
}

.south_africa__top_shape {
  scale: 1;
  background-color: #e1392d;
}

/* bottom blue Shape */
.south_africa__bottom_shape {
  scale: 1;
  background-color: #000c8a;
}

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

This Pen doesn't use any external JavaScript resources.