* {
  box-sizing: border-box;
}

/* Position the image container (needed to position the left and right arrows) */
.container {position: relative;}

/* Hide the images by default */
.mySlides {display: none; width:100%;}

.mySlides .img {
    width:640px;
    height:200px;
}

/* 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;}

/* Container for image text */
.caption-container {text-align: center; background-color: #222; padding: 2px 16px;color: white; font-size:20px;}

.row:after {content: "";display: table;clear: both;}

/* Six columns side by side */
.column {float: left;width: 16.66%;}

/* Add a transparency effect for thumnbail images */
.demo {opacity: 0.6;}

.active, .demo:hover {opacity: 1;}