A2C

<body>

  <div class="flex01">
    <div class="square01"></div>
    <div class="square02"></div>
    <div class="square03"></div>
    <div class="square04"></div>
  </div>

    <div class="flex02">
      <div class="linie"></div>
      <div class="overlay01"></div>
      <div class="overlay02"></div>
      <div class="overlay03"></div>
      <div class="overlay04"></div>
      <div class="overlay05"></div>
      <div class="overlay06"></div>
    </div>

  </body>

body {
    margin: 0;
    padding: 0;
  }

  .linie {
    position: absolute;
    top: 0;
    left: 0;
    margin-left: 49.5vw;
    border: none;
    width: 10px;
    height: 100%;
    background-color: #0000ff;
  }

  .flex01 {
    position: relative;
    background-color: grey;
    display: flex;
    height: 90%;
    width: auto;
    margin: 0;
    padding: 0;
    flex-wrap: wrap;
    align-content: center;
  }

  .square01 {
    width: 49vw;
    height: 48.5vh;
    background-color: #fe8455;
    border-right: 1vw solid #feceaa;
    border-bottom: 1.5vh solid #feceaa;
    box-shadow: inset 0 0 20px #ffffff;
  }

  .square02 {
    width: 50vw;
    height: 48.5vh;
    background-color: #b2bfff;
    border-bottom: 1.5vh solid #feceaa;
    box-shadow: inset 0 0 20px #ffffff;
  }

  .square03 {
    width: 49vw;
    height: 50vh;
    background-color: #b2bfff;
    border-right: 1vw solid #feceaa;
    box-shadow: inset 0 0 20px #ffffff;
  }

  .square04 {
    width: 50vw;
    height: 50vh;
    background-color: #fe8455;
    box-shadow: inset 0 0 20px #ffffff;
  }

  .flex02 {
    position: absolute;
    top: 0;
    left: 0;
    border: none;
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
  }

  .overlay01 {
    width: 13%;
    height: 48.5%;
    background-color: lightblue;
    box-shadow: inset 0 0 50px #00f;
    margin-right: 15.5vw;
    border-radius: 0px 100px 100px 0px;
  }

  .overlay02 {
    width: 25%;
    height: 48.5%;
    background-color: lightblue;
    box-shadow: inset 0 0 50px #00f;
    margin-right: 15vw;
    border-radius: 100px;
  }

  .overlay03 {
    width: 13%;
    height: 48.5%;
    background-color: lightblue;
    box-shadow: inset 0 0 50px #00f;
    border-radius: 100px 0px 0px 100px;
  }

  .overlay04 {
    width: 13%;
    height: 50%;
    margin-top: 1.5vh;
    background-color: lightblue;
    box-shadow: inset 0 0 50px #00f;
    margin-right: 15.5vw;
    border-radius: 0px 100px 100px 0px;
  }

  .overlay05 {
    width: 25%;
    height: 50%;
    margin-top: 1.5vh;
    background-color: lightblue;
    box-shadow: inset 0 0 50px #00f;
    margin-right: 15vw;
    border-radius: 100px;
  }

  .overlay06 {
    width: 13%;
    height: 50%;
    margin-top: 1.5vh;
    background-color: lightblue;
    box-shadow: inset 0 0 50px #00f;
    border-radius: 100px 0px 0px 100px;
  }