.mySlides {
  display: none;
}

.slideshow-container {
  position: absolute;
  left: 0;
  top: 100px;
  width: 100%;
  max-width: 100%;
  height: 530px;
  overflow: hidden;
  z-index: -1;
}
.slider_img {
  height: 530px;
  display: block;
  float: left;
}

.active {
  background-color: #717171;
}

/* fading animation */
.fade {
  -webkit-animation-name: fade;
  -webkit-animation-duration: 2.5s;
  -webkit-animation-timing-function: ease-out;
  animation-name: fade;
  animation-duration: 2.5s;
  animation-timing-function: ease-out;
}

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

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

@media (min-resolution: 144dpi) {
  .slideshow-container {
    width: 100%;
    max-width: 100%;
    height: 400px;
    overflow: hidden;
    z-index: -1;
  }
  .slider_img {
    height: 400px;
    display: block;
    float: left;
  }
}