.slideshow_wrapper {
  margin: 0px 90px 0px;
  width:950px;
  height:150px;
  overflow:hidden;

}


.slideshow {
  width:1500px;
  height:280px;
  margin: 0 0 0 -830px;
 position: relative;
  -webkit-animation-name: slide_animation;
  -webkit-animation-duration:8s;
  -webkit-animation-iteration-count:infinite;
  -webkit-animation-direction:alternate;
   -webkit-animation-play-state: running;
}

.slide {
  width:500px;
  height: 270px;
  position: relative;
  float:left;
  overflow:hidden;
}

.slideshow img{
  width:auto; height:auto;
}

@-webkit-keyframes slide_animation {

  0% {left:0px;}
  10% {left:500px;}
  20% {left:500px;}
  30% {left:500px;}
  40% {left:500px;}
  50% {left:500px;}
  60% {left:500px;}
  70% {left:1000px;}
  80% {left:1000px;}
  90% {left:1000px;}
  100% {left:1000px;}

}