index.css

/* Add a black background color to the top navigation */
.topnav {
    background-color: #363636;
    overflow: hidden;
    border-radius: 3px;
  }
  
  /* Style the links inside the navigation bar */
  .topnav a {
    float: left;
    font-family: 'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
    color: #f2f2f2;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
    font-size: 17px;
  }
  
  /* Change the color of links on hover */
  .topnav a:hover {
    background-color: #ff894c;
    color: black;
    border-radius: 3px;
  }
  
  /* Add a color to the active/current link */
  .topnav a.active {
    background-color: #dc2f2f;
    color: white;
    border-radius: 3px;
  }

  .topnav .search-container {
    float: right;
  }
  
  /* Search bar */
  .topnav input[type=text] {
    padding: 6px;
    margin-top: 8px;
    font-size: 17px;
    border: none;
    border-radius: 3px;
    font-style: italic;
  }
  
  /* Search button */
  .topnav .search-container button {
    float: right;
    padding: 6px 10px;
    margin-top: 8px;
    margin-right: 16px;
    background: #ddd;
    font-size: 17px;
    border: none;
    cursor: pointer;
    box-shadow: none;
    border-radius: 3px;
  }
  
  .topnav .search-container button:hover {
    background: #ccc;
    box-shadow: none;
  }
  
  @media screen and (max-width: 600px) {
    .topnav .search-container {
      float: none;
    }
    .topnav a, .topnav input[type=text], .topnav .search-container button {
      float: none;
      display: block;
      text-align: left;
      width: 100%;
      margin: 0;
      padding: 14px;
    }
    .topnav input[type=text] {
      border: 1px solid #ccc;  
    }
  }

h1 {
    text-align: center;
    font-family: 'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
    margin: 0;
}

  * {box-sizing:border-box}

  /* Slideshow container */
  .slideshow-container {
    padding-top: 0.5%;
    max-width: 1000px;
    position: relative;
    margin: auto;
  }
  
  /* Hide the images by default */
  .mySlides {
    display: none;
  }
  
  /* Next & previous buttons */
  .prev, .next {
    cursor: pointer;
    position: absolute;
    top: 50%;
    width: auto;
    margin-top: -22px;
    padding: 16px;
    color: white;
    font-weight: bold;
    font-size: 18px;
    transition: 0.6s ease;
    border-radius: 0 3px 3px 0;
    user-select: none;
  }
  
  /* Position the "next button" to the right */
  .next {
    right: 0;
    border-radius: 3px 0 0 3px;
  }
  
  /* On hover, add a black background color with a little bit see-through */
  .prev:hover, .next:hover {
    background-color: rgba(0,0,0,0.8);
  }
  
  /* Caption text */
  .text {
    color: #f2f2f2;
    background-color: #363636;
    font-size: 25px;
    font-family: 'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
    padding: 8px 12px;
    position: absolute;
    bottom: 8px;
    width: 100%;
    text-align: center;
  }

  /* The dots/bullets/indicators */
  .dot {
    cursor: pointer;
    height: 15px;
    width: 15px;
    margin: 0 2px;
    background-color: #bbb;
    border-radius: 50%;
    display: inline-block;
    transition: background-color 0.6s ease;
  }
  
  .active, .dot:hover {
    background-color: #717171;
  }
  
  /* Fading animation */
  .fade {
    animation-name: fade;
    animation-duration: 0.1s;
  }
  
  @keyframes fade {
    from {opacity: .4}
    to {opacity: 1}
  }

  .release_link {
    font-family: 'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
    text-align: center;
  }

  .dark-mode {
    background-color: #4f4d4d;
    color: #c6c6c6;
  }

  .dark_button {
    background-color: #363636;
    color: white;
    box-shadow: none;
    width: 100px;
    height: 50px;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    position: relative;
    top: 0;
    margin-left: auto;
  }