<label for="check-button" class="button">
  Принят
</label>
<input id="check-button" type="checkbox" class="hidden">
<form method="GET">
  <input name="state" type="submit" value="Подтверждён">
  <br>
  <input name="state" type="submit" value="Оплачен">
  <br>
  <input name="state" type="submit" value="Отправлен">
  <br>
  <input name="state" type="submit" value="Получен">
  <br>
</form>

.button {
  display: inline-block;
  background-color: lightgray;
  padding: 0.2em 0.5em; 
  border: solid 1px gray;
  cursor: pointer;
}
.hidden {
  display: none;
}
input[type="checkbox"] + form {
  display: none;
}
input[type="checkbox"]:checked + form {
  display: block;
}
input[type=submit] {
  background: none;
  border: none;
  padding: 0.2em;
  cursor: pointer;
}
input[type=submit]:hover {
  background: #eee;
}