* {box-sizing: border-box}
body {
    font-family: Arial;
    margin: 0;
    width: 80%;
    margin:auto;
  }
  
  * {
    box-sizing: border-box;
  }
  
  img {
    vertical-align: middle;
  }
  
  /* Position the image container (needed to position the left and right arrows) */
  .container {
    position: relative;
  }
  
  /* Hide the images by default */
  .mySlides {
    display: none;
  }
  
  /* Add a pointer when hovering over the thumbnail images */
  .cursor {
    cursor: pointer;
  }
  
  /* Next & previous buttons */
  .prev,
  .next {
    cursor: pointer;
    position: absolute;
    top: 40%;
    width: auto;
    padding: 16px;
    margin-top: -50px;
    color: white;
    font-weight: bold;
    font-size: 20px;
    border-radius: 0 3px 3px 0;
    user-select: none;
    -webkit-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);
  }
  
  /* Number text (1/3 etc) */
  .numbertext {
    color: #f2f2f2;
    font-size: 12px;
    padding: 8px 12px;
    position: absolute;
    top: 0;
  }