<div class="string-input-popup">
  <label class="string-input-popup-label" data-text="label"></label>
  <input class="string-input-popup-input sidebar-input"></input>
  <div class="string-input-popup-buttons">
    <button class="string-input-popup-button-ok" data-click="onOkClicked" data-text="okLabel"></button>
    <button class="string-input-popup-button-cancel" data-click="onCancelClicked" data-text="cancelLabel"></button>
  </div>
</div>