Как сделать, чтобы первые элементы обертывались поверх других элементов с помощью flexbox?

input[type=radio] {
  position: absolute;
  visibility: hidden;
  display: none;
}

label {
  flex: 1 0 auto;
  background-color: white;
  text-align: center;
  color: dimgray;
  cursor: pointer;
  font-weight: bold;
  user-select: none;
  padding: 5px;
  width: 60px;
  transition: background 0.2s, color 0.2s;
}

input[type=radio]:checked + label{
  color: White;
  background: dimgrey;
  
  &:hover {
    color: White;
    background: dimgrey;
  }
}

input[type=radio] + label:hover {
  color: white;
  background-color: lightgrey;
}

label + input[type=radio] + label {
  border-left: 0.5px solid lightgrey;
}

.radio-group {
  display: flex;
  flex-wrap: wrap;
  max-width: max-content;
  align-items: stretch;
  border: 0.5px solid dimgrey;
}

.radio-group.flexbox > label:nth-child(2) {
  width: calc( 100% - 12px ) !IMPORTANT;
}

<form>
  <div class = "radio-group flexbox">
    <input type = "radio" id = "alle" value = "alle" name = "selector" checked><label for = "alle">Alle</label
    ><input type = "radio" id = "aktiv" value = "aktiv" name = "selector" ><label for = "aktiv">Aktive</label
    ><input type = "radio" id = "inaktiv" value = "inaktiv" name = "selector"><label for = "inaktiv">Inaktive</label>
  </div>
</form>