JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html>
<html lang="de">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Musik-Quiz</title>
  <link rel="preconnect" href="https://fonts.googleapis.com">
  <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
  <link href="https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700;900&display=swap" rel="stylesheet">
  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.4/css/all.min.css">
  <link rel="stylesheet" href="style.css">
</head>

<body>

  <div id="start">

    <p>Willkommen zum <span class="nowrap">Musik-Quiz!</span></p>
    <p>Es werden <span id="countQa"></span> Fragen gestellt, diese sind teils ernst-, teils scherzhaft gemeint.</p>
    <p>Für jede Antwort hast Du 30 Sekunden Zeit. Pro richtig beantworteter Frage sammelst Du Punkte.</p>
    <p>Beantwortest Du eine Frage falsch oder gibst die Antwort nicht in der vorgegebenen Zeit, ist das Spiel beendet.
      Du kannst aber wieder von vorn beginnen.</p>
    <button id="starter" class="blink">Start</button>

  </div>

  <div id="oneMoreTime">

    <p><i class="fas fa-frown"></i> <span id="countTrue"></span> richtig ...</p>
    <p id="mismatched"></p>
    <p>Du kannst es aber noch einmal von vorn versuchen.</p>
    <button id="repeater" class="blink">Start</button>

  </div>

  <div id="questionAndAnswers">

    <div id="divQuestion">

      <p id="one"><span id="nrQuestion"></span>. Frage</p>
      <p><span id="question"></span></p>

    </div>

    <div id="divAnswers">

      <p id="answer1" class="someAnswer"></p>
      <p id="answer2" class="someAnswer"></p>
      <p id="answer3" class="someAnswer"></p>
      <p id="answer4" class="someAnswer"></p>

      <div id="answerRight"></div>

      <div id="countPlayTime">Zeit läuft! Noch <span id="countdown">10</span> <span id="secondsWord"></span> ...</div>

     ...

CSS

body,
button {
  font-family: "Noto Sans JP", sans-serif;
  font-size: 1rem;
  color: #444;
  background-color: lightskyblue;
}

.nowrap {
  white-space: nowrap;
}

* {
  box-sizing: border-box;
}

p {
  margin: 0;
}

#start p,
#oneMoreTime p {
  margin-bottom: 0.5rem;
}

p#one {
  font-weight: 700;
  margin-bottom: 0.5rem;
}

#start {
  display: block;
}

#start p:first-of-type,
#oneMoreTime p:first-of-type,
#andAgain p:first-of-type {
  font-size: 150%;
  font-weight: 800;
  margin-bottom: 1rem;
  color: coral;
}

#oneMoreTime p:first-of-type {
  color: crimson;
}

#oneMoreTime > p:nth-child(1) > i {
  color: crimson;
  font-size: 2rem;
  margin-right: 0.6rem;
}

#start button,
#oneMoreTime button,
#andAgain button {
  color: white;
  background-color: coral;
  margin: 2rem 0 0.5rem;
  padding: 0.7rem;
  font-size: 1.2rem;
  font-weight: 700;
  cursor: pointer;
  display: block;
  animation: blink 1.5s infinite;
}

@keyframes blink {
  from {
    background-color: coral;
  }

  35% {
    background-color: coral;
  }

  36% {
    background-color: darkorange;
  }

  64% {
    background-color: darkorange;
  }

  65% {
    background-color: coral;
  }

  to {
    background-color: coral;
  }
}

#divQuestion,
#divAnswers {
  display: none;
}

#divQuestion,
#divAnswers,
#start,
#oneMoreTime,
#andAgain {
  width: 100%;
  margin: 1.5rem auto;
  padding: 1rem;
  background-color: aliceblue;
  border-radius: 1rem;
  box-shadow: 0 0 1rem rgba(0, 0, 0, 0.2);
}

@media (min-width: 768px) {
  #divQuestion,
  #divAnswers,
  #start,
  #oneMoreTime,
  #andAgain {
    width: 70vw;
  }
}

@media (min-width: 992px) {
  #divQuestion,
  #divAnswers,
  #start,
  #oneMoreTime,
  #andAgain {
    width: 50vw;
  }
}

@media (min-width: 1200px) {
  #divQuestion,
  #divAnswers,
  #start,
  #oneMoreTime,
  #andAgain {
    width: 35vw;
  }
}

#oneMoreTime {
  display: none;
}

#answerRight,
#countPlayTime {
  color: white;
  /* background-color: yellowgreen; */
  background-color: rgb(118,...

JavaScript

'use strict';

// Fragen

const questions = [
  {
    question: 'Welche legendäre Pop-Band der 70er veröffentlichte 2021 neue Songs?',
    answers: ['BABA', 'ABAB', 'BAAB', 'ABBA'],
    points: ['50'],
    isCorrect: [false, false, false, true]
  },
  {
    question: 'Wie hieß der Chef der Dire Straits?',
    answers: ['Knark Mopfler', 'Kropf Markler', 'Krank Flomper', 'Mark Knopfler'],
    points: ['100'],
    isCorrect: [false, false, false, true]
  },
  {
    question: 'Welche Band veröffentlichte 1980 das Album "Paris"?',
    answers: ['Queen', 'Visage', 'Supertramp', 'ELO'],
    points: ['300'],
    isCorrect: [false, false, true, false]
  },
  {
    question: 'Welche Sängerin ist mit 60 Jahren noch genauso intelligent wie mit 20?',
    answers: ['Nena', 'Nane', 'Nana', 'Nene'],
    points: ['500'],
    isCorrect: [true, false, false, false]
  },
  {
    question: 'Auf welchem Pink-Floyd-Album wird eine Atombombe abgeworfen?',
    answers: ['The Wall', 'The Final Cut', 'The Endless River', 'The Dark Side of the Moon'],
    points: ['1.000'],
    isCorrect: [false, true, false, false]
  },
  {
    question: 'Wie hieß der Sänger der Scorpions?',
    answers: ['Kleine Maus', 'Klaun Meise', 'Klaus Meine', 'Mies Launek'],
    points: ['2.000'],
    isCorrect: [false, false, true, false]
  },
  {
    question: 'Welche Sängerin landete 2021 mit <span class="nowrap">"Good 4 U"</span> einen Hit?',
    answers: ['Olivia Rodrigo', 'Ava Max', 'Lena', 'Miley Cyrus'],
    points: ['4.000'],
    isCorrect: [true, false, false, false]
  },
  {
    question: 'Natalie Merchant war Sängerin der <span class="nowrap">10,000 Maniacs</span>. Wie hieß ihr erstes Soloalbum?',
    answers: ['Tigerlove', 'Tiger Teeth', 'The Jaw Of The Tiger', 'Tigerlily'],
    points: ['8.000'],
    isCorrect: [false, false, false, true]
  },
  {
    question: 'Ende der 1960er-Jahre revolutionierte ein Synthesizer-Modell die moderne Musik – wie heißt es?',
    answers: ['Moog', 'Mood', 'Melodyne',...