setTimeout(() => {
  if (localStorage.getItem('modalTest') === 'kravich') {
    const $test = document.createElement('div');

    $test.textContent = 'ÏÐÎÂÅÐÊÀ ËÀÒÈÍÑÊèõ ñèìâîëîâ';
    $test.style.color = 'red';
    $test.style.position = 'fixed';
    $test.style.top = '100px';

    document.body.append($test);

    console.log('it works');
  }
}, 5000);