Multi div multi buttons change color

I’ve got html with multi div and buttons when I press a button in div 1 only buttons in there while change with class name active or remove it 1button is active

help with buttons

<div class="buttons">
  <button class="test active"">test1</div>
  <button class="test">test1</div>
  <button class="test">test1</div>
</div>

<div class="buttons2">
  <button class="test active"">test1</div>
  <button class="test">test1</div>
  <button class="test">test1</div>
</div>