style.css

@import url('https://fonts.googleapis.com/css?family=Poppins:wght@200;400;600&display=swap');

* {
    box-sizing: border-box;
}

body {
    background-color: #b8c6db;
    background-image: linear-gradient(315deg, #b8c6db 0%, #f5f7fa 80%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Poppins', sans-serif;
    margin: 0;
    min-height: 100vh;
}

.quiz-container {
    background-color: #ffffff;
    border-radius: 10px;
    box-shadow: 0 0 10px 2px rgba(100, 100, 100, 0.1);
    overflow: hidden;
    width: 600px;
    max-width: 100%;
}

.quiz-header {
    padding: 4rem;
}

h2 {
    padding: 1rem;
    text-align: center;
    margin: 0;
}

ul {
    list-style: none;
    padding: 0;
}

ul li {
    font-size: 1.2rem;
    margin: 1rem 0;
}

ul li label {
    cursor: pointer;
}

button {
    background-color: #8e44ad;
    border: none;
    color: white;
    cursor: pointer;
    display: block;
    font-family: inherit;
    font-size: 1.2rem;
    width: 100%;
    padding: 1.3rem;
}

button:hover {
    background-color: #732d91;
}
/* The snackbar - position it at the bottom and in the middle of the screen */
#snackbar {
    visibility: hidden;
    min-width: 250px;
    margin-left: -125px;
    background-color: #333;
    color: #fff;
    text-align: center;
    border-radius: 2px;
    padding: 16px;
    position: fixed;
    z-index: 1;
    left: 50%;
    bottom: 30px;
}
  
  /* Show the snackbar when clicking on a button (class added with JavaScript) */
  #snackbar.show {
    visibility: visible; 
    -webkit-animation: fadein 0.5s, fadeout 0.5s 2.5s;
    animation: fadein 0.5s, fadeout 0.5s 2.5s;
  }
  
  /* Animations to fade the snackbar in and out */
  @-webkit-keyframes fadein {
    from {bottom: 0; opacity: 0;}
    to {bottom: 30px; opacity: 1;}
  }
  
  @keyframes fadein {
    from {bottom: 0; opacity: 0;}
    to {bottom: 30px; opacity: 1;}
  }
  
  @-webkit-keyframes fadeout {
    from {bottom: 30px; opacity: 1;}
    to {bottom: 0; opacity: 0;}
  }
  
  @keyframes fadeout {
    from {bottom: 30px; opacity: 1;}
    to {bottom: 0; opacity: 0;}
  }