CodePen Embed - 202104

<div class="bg">
  <img class="img-polygon02" src="https://www.eyesofc.co.jp/webeyes/_demo/torarin/202104/sample.jpg" alt="サンプル画像">
</div>

.bg {
  width: 320px;
  max-height: 214px;
  background-color: #003366;
}
img {
  max-width: 320px;
  width: 100%;
}
.img-polygon02 {
  clip-path: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%);
}

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