setTimeout(() => {
const parents = document.querySelectorAll('[class^="PageContainer-"]');
if (parents.length >= 2) {
  const secondParent = parents[2];

  if (secondParent.firstElementChild) {
    const newBlock = document.createElement('div');
    if (window.innerWidth >= 1025) {
   newBlock.style.maxWidth = '300px';
   newBlock.style.maxHeight = '600px';
   //newBlock.style.overflow = 'auto';
   newBlock.style.boxSizing = 'border-box';
}
    newBlock.innerHTML = '<div class="buzzplayer-1296643"></div>';
    secondParent.firstElementChild.appendChild(newBlock);
  } 
} 
},1500);

Юридически значимое уведомление о вручении