<svg width="300px" height="300px" class="left-top border">
  <polygon fill="#4fd2dd" points="6,66 6,18 12,12 18,12 24,6 27,6 30,9 36,9 39,6 84,6 81,9 75,9 73.2,7 40.8,7 37.8,10.2 24,10.2 12,21 12,24 9,27 9,51 7.8,54 7.8,63">
    <animate
      attributeName="fill"
      values="#4fd2dd;#235fa7;#4fd2dd"
      dur="0.5s"
      begin="0s"
      repeatCount="indefinite"
    />
  </polygon>
  <polygon fill="#235fa7" points="27.599999999999998,4.8 38.4,4.8 35.4,7.8 30.599999999999998,7.8">
    <animate
      attributeName="fill"
      values="#235fa7;#4fd2dd;#235fa7"
      dur="0.5s"
      begin="0s"
      repeatCount="indefinite"
    />
  </polygon>
  <polygon fill="#4fd2dd" points="9,54 9,63 7.199999999999999,66 7.199999999999999,75 7.8,78 7.8,110 8.4,110 8.4,66 9.6,66 9.6,54">
    <animate
      attributeName="fill"
      values="#4fd2dd;#235fa7;transparent"
      dur="1s"
      begin="0s"
      repeatCount="indefinite"
    />
  </polygon>
</svg>

body {
  background: #0e2439;
}

.border {
  position: absolute;
  display: block;
}

.right-top {
  right: 0px;
  transform: rotateY(180deg);
}