.slider {
  max-width: 600px;
  margin: 20px auto;
  position: relative;
  font-size: 10px;
  text-align: center;
  overflow: hidden;
  min-height: 100px;
}

.slider .slide {
  position: absolute;
  top: 0;
  left: 0;
  opacity: 0;
  width: 100%;
  transition: opacity 1s ease-in-out;
  font-size: 20px;
  line-height: 1.4;
  white-space: normal;
}

.slider .slide.active {
  opacity: 1;
  position: relative;
}



/*
.slider {
  max-width: 600px;
  height: 50px;
  margin: 20px auto;
  position: relative;
  font-size:10px;
  text-align:center;
}

.slide1,.slide2,.slide3,.slide4 {
  position: absolute;
  width: 100%;
  height: 100%;
  font-size:20px;
}

.slide1 {

  animation:fade 8s infinite;
  -webkit-animation:fade 8s infinite;

} 
.slide2 {

  animation:fade2 8s infinite;
  -webkit-animation:fade2 8s infinite;
}
.slide3 {

    animation:fade3 8s infinite;
-webkit-animation:fade3 8s infinite;
}
.slide4 {

    animation:fade4 8s infinite;
-webkit-animation:fade4 8s infinite;
}

@keyframes fade
{
  0%   {opacity:0}
  20% { opacity: 1}
  40% { opacity: 0}
  60% { opacity: 0}
  80% { opacity: 0}
  100% { opacity: 0}
}
@keyframes fade2
{
  0%   {opacity:0}
  20% { opacity: 0}
  40% { opacity: 1}
  60% { opacity: 0}
  80% { opacity: 0}
  100% { opacity: 0}
}
@keyframes fade3
{
  0%   {opacity:0}
  20% { opacity: 0}
  40% { opacity: 0}
  60% { opacity: 1}
  80% { opacity: 0}
  100% { opacity: 0}
}
@keyframes fade4
{
  0%   {opacity:0}
  20% { opacity: 0}
  40% { opacity: 0}
  60% { opacity: 0}
  80% { opacity: 1}
  100% { opacity: 0}
}
*/