CodePen Embed - @layer 4

<div class="block"></div>

div{
  width: 200px;
  height: 200px;
}
@layer B,C,A;
@layer{
  div{
    background: pink;
  }
}
@layer A{
  div{
    background: blue;
  }
}
@layer B{
  div{
    background: orange;
  }
}
@layer C{
  div{
    background: red;
  }
}

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