<div class="container">
  <div class="avatar">
      <div class="border"></div>
  </div>
</div>
body {
  background:#0d1316;
}

.container {
  margin: 0 auto;
  display: flex;
  min-height: 100vh;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.avatar {
  height: 100px;
  width: 100px;
  background:#325d74;
  border-radius:50%;
  position:absolute;
  border:20px solid #0d1316;
}

.border {
    content: "";
    z-index:-2;
    box-sizing: border-box;
    position: absolute;
    width: 180px;
    height: 100px;
  border-radius:0 0 90px 90px;
    background: linear-gradient(90deg, rgba(131,58,180,1) 0%, rgba(253,29,29,1) 50%, rgba(252,176,69,1) 100%);
    bottom: -40px;
  left:-40px;

}

.avatar:before {
    content: "";
    box-sizing: border-box;
    position: absolute;
    border: 20px solid #0d1316;
    width: 60px;
    height: 30px;
    left: 100px;
    margin-left: 0;
    top: 25px;
    border-top-left-radius: 50px;
    border-top-right-radius: 50px;
    border-bottom:none;
}

.avatar:after {
    content: "";
    box-sizing: border-box;
    position: absolute;
    border: 20px solid #0d1316;
    width: 60px;
    height: 30px;
    left: -60px;
    margin-left: 0;
    top: 25px;
    border-top-left-radius: 50px;
    border-top-right-radius: 50px;
    border-bottom:none;


}

External CSS

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External JavaScript

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