<div class="body">

    <div>
      <div class="green1"></div>
      <div class="smallyellow1"></div>
    </div>
    <div>
      <div class="green2"></div>
      <div class="smallyellow2">
      </div>
    </div>
    <div>
      <div class="green3"></div>
      <div class="smallyellow3">
      </div>
    </div>
    <div>
      <div class="green4"></div>
      <div class="smallyellow4">
      </div>
    </div>

    <div>
      <div class="black">
        <div class="darkblue">
          <div class="blue">
            <div class="lightblue">
              <div class="yellow">
                <div class="weiss">
                  <div class="center">
                    <span></span>
                  </div>
                </div>
              </div>
            </div>
          </div>
        </div>
      </div>
    </div>

  </div>
.body {
    background-color: white;
    position: relative;
    width: 600px;
    height: 600px;
  }

  body {
    background-color: grey;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0;
  }

  .smallyellow1 {
    background-color: yellow;
    position: absolute;
    width: 100px;
    height: 100px;
    top: 0%;
    left: 0%;
  }

  .green1 {
    background-color: #34d719;
    position: absolute;
    width: 130px;
    height: 130px;
    top: 0%;
    left: 0%;
  }

  .green2 {
    background-color: #34d719;
    position: absolute;
    width: 130px;
    height: 130px;
    top: 0%;
    right: 0%;
  }

  .smallyellow2 {
    background-color: yellow;
    position: absolute;
    width: 100px;
    height: 100px;
    top: 0%;
    right: 0%;
  }

  .green3 {
    background-color: #34d719;
    position: absolute;
    width: 130px;
    height: 130px;
    bottom: 0%;
    right: 0%;
  }

  .smallyellow3 {
    background-color: yellow;
    position: absolute;
    width: 100px;
    height: 100px;
    bottom: 0%;
    right: 0%;
  }

  .green4 {
    background-color: #34d719;
    position: absolute;
    width: 130px;
    height: 130px;
    bottom: 0%;
    left: 0%;
  }

  .smallyellow4 {
    background-color: yellow;
    position: absolute;
    width: 100px;
    height: 100px;
    bottom: 0%;
    left: 0%;
  }

  .black {
    background-color: black;
    position: absolute;
    width: 340px;
    height: 340px;
    bottom: 130px;
    left: 130px;
  }
  .darkblue {
    background-color: darkblue;
    position: absolute;
    width: 300px;
    height: 300px;
    bottom: 20px;
    left: 20px;
  }

  .blue {
    background-color: blue;
    position: absolute;
    width: 260px;
    height: 260px;
    bottom: 20px;
    left: 20px;
  }

  .lightblue {
    background-color: lightblue;
    position: absolute;
    width: 220px;
    height: 220px;
    bottom: 20px;
    left: 20px;
  }
  .yellow {
    background-color: yellow;
    position: absolute;
    width: 180px;
    height: 180px;
    bottom: 20px;
    left: 20px;
  }

  .weiss {
    background-color: white;
    position: absolute;
    width: 140px;
    height: 140px;
    bottom: 20px;
    left: 20px;
  }

  .center {
    background-color: #a3fe65;
    border-radius: 100%;
    margin: 0;
    padding: 0;
    height: 100%;
  }