title: CSS Transitions to cross fade multiple images not working correctly
body: <p>I have four images which I would like to cross fade with CSS Only.  I have researched the code to achieve this, which is based on <a href="http://css3.bradshawenterprises.com/cfimg/" rel="nofollow noreferrer">CSS = Awesome</a></p>
  
  <p>I have added what I have done to a <a href="https://jsfiddle.net/f57pLppg/1/" rel="nofollow noreferrer">JS Fiddle</a></p>
  
  <p>CSS</p>
  
  <pre><code>.upperlogo {
  position:relative;
  height: 100px;
  width:1200px;
  margin: 0 auto;
  background-color:transparent;
  }
  
  @-webkit-keyframes upperlogoFadeInOut {
      0% {
          opacity:1;
      }
  17% {
      opacity:0;
  }
  34% {
      opacity:0;
  }
  51% {
      opacity:0;
  }
  68% {
      opacity:0;
  }
  85% {
      opacity:0;
  }
  100% {
      opacity:1;
  }
  }
  
  
  @-moz-keyframes upperlogoFadeInOut {
  0% {
      opacity:1;
  }
  17% {
      opacity:0;
  }
  25% {
      opacity:0;
  }
  92% {
      opacity:0;
  }
  100% {
      opacity:1;
  }
  }
  
  @-o-keyframes upperlogoFadeInOut {
  0% {
      opacity:1;
  }
  17% {
      opacity:0;
  }
  25% {
      opacity:0;
  }
  92% {
      opacity:0;
  }
  100% {
      opacity:1;
  }
  }
  
  @keyframes upperlogoFadeInOut {
  0% {
      opacity:1;
  }
  17% {
      opacity:0;
  }
  25% {
      opacity:0;
  }
  92% {
      opacity:0;
  }
  100% {
      opacity:1;
  }
  }
  
  
  
  .upperlogo img {
  position:absolute;
  left:0;
  }
  
  .upperlogo img {
  -webkit-animation-name: upperlogoFadeInOut;
  -webkit-animation-timing-function: ease-in-out;
  -webkit-animation-iteration-count: infinite;
  -webkit-animation-duration: 16s;
  
  -moz-animation-name: upperlogoFadeInOut;
  -moz-animation-timing-function: ease-in-out;
  -moz-animation-iteration-count: infinite;
  -moz-animation-duration: 16s;
  
  -o-animation-name: upperlogoFadeInOut;
  -o-animation-timing-function: ease-in-out;
  -o-animation-iteration-count: infinite;
  -o-animation-duration: 16s;
  
  animation-name: upperlogoFadeInOut;
  animation-timing-function: ease-in-out;
  animation-iteration-count: infinite;
  animation-duration: 16s;
  }
  
  .upperlogo img:nth-of-type(1) {
  -webkit-animation-delay: 16s;
  -moz-animation-delay: 16s;
  -o-animation-delay: 16s;
  animation-delay: 16s;
  }
  
  .upperlogo img:nth-of-type(2)) {
  -webkit-animation-delay: 12s;
  -moz-animation-delay: 12s;
  -o-animation-delay: 12s;
  animation-delay: 12s;
  }
  
  .upperlogo img:nth-of-type(3) {
  -webkit-animation-delay: 8s;
  -moz-animation-delay: 8s;
  -o-animation-delay: 8s;
  animation-delay: 8s;
  }
  
  .upperlogo img:nth-of-type(4) {
  -webkit-animation-delay: 4s;
  -moz-animation-delay: 4s;
  -o-animation-delay: 4s;
  animation-delay: 4s;
  }
  </code></pre>
  
  <p>A couple of the images end up muddy between each other and I get a blank screen for a few seconds also.  I can't get my head around this.  What I wish to achieve is always having an image visable and them transitioning smoothly between each other.</p>