* {box-sizing: border-box;}

body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
}

.slideshow-container {
  max-width: 50%;
  position: relative;
  margin: 25px auto;
}

.mySlides1, .mySlides2 {
  display: none;
}

img {
  vertical-align: middle;
  width: 100%;
}

/* Fade effect */
.fade {
  animation-name: fade;
  animation-duration: 2.5s;
}

@keyframes fade {
  from {opacity: .4}
  to {opacity: 1}
}