<ul>
    <input type="radio" name="radio-btn" id="img-1" checked />
    <li>
      <img src="http://farm9.staticflickr.com/8072/8346734966_f9cd7d0941_z.jpg" />
      <label for="img-6">&#x2039;</label>
      <label for="img-2">&#x203a;</label>
    </li>
    <input type="radio" name="radio-btn" id="img-2" />
    <li>
          <img src="http://farm9.staticflickr.com/8504/8365873811_d32571df3d_z.jpg" />
      <label for="img-1">&#x2039;</label>
      <label for="img-3">&#x203a;</label>
    </li>
    <input type="radio" name="radio-btn" id="img-3" />
    <li>
          <img src="http://farm9.staticflickr.com/8068/8250438572_d1a5917072_z.jpg" />
      <label for="img-2">&#x2039;</label>
      <label for="img-4">&#x203a;</label>
    </li>
    <input type="radio" name="radio-btn" id="img-4" />
    <li>
          <img src="http://farm9.staticflickr.com/8061/8237246833_54d8fa37f0_z.jpg" />
      <label for="img-3">&#x2039;</label>
      <label for="img-5">&#x203a;</label>
    </li>
    <input type="radio" name="radio-btn" id="img-5" />
    <li>
          <img src="http://farm9.staticflickr.com/8055/8098750623_66292a35c0_z.jpg" />
      <label for="img-4">&#x2039;</label>
      <label for="img-6">&#x203a;</label>
    </li>
    <input type="radio" name="radio-btn" id="img-6" />
    <li>
          <img src="http://farm9.staticflickr.com/8195/8098750703_797e102da2_z.jpg" />
      <label for="img-5">&#x2039;</label>
      <label for="img-1">&#x203a;</label>
    </li>
    <li>
      <label for="img-1" id="img-dot-1"></label>
      <label for="img-2" id="img-dot-2"></label>
      <label for="img-3" id="img-dot-3"></label>
      <label for="img-4" id="img-dot-4"></label>
      <label for="img-5" id="img-dot-5"></label>
      <label for="img-6" id="img-dot-6"></label>
    </li>
</ul>
<style>
    @import url(https://fonts.googleapis.com/css?family=Varela+Round);
html, body { background: #333 url("https://codepen.io/images/classy_fabric.png"); }
.slides {
    padding: 0;
    width: 609px;
    height: 420px;
    display: block;
    margin: 0 auto;
    position: relative;
}
.slides * {
    user-select: none;
    -ms-user-select: none;
    -moz-user-select: none;
    -khtml-user-select: none;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
}
.slides input { display: none; }
.slide-container { display: block; }
.slide {
    top: 0;
    opacity: 0;
    width: 609px;
    height: 420px;
    display: block;
    position: absolute;
    transform: scale(0);
    transition: all .7s ease-in-out;
}
.slide img {
    width: 100%;
    height: 100%;
}
.nav label {
    width: 200px;
    height: 100%;
    display: none;
    position: absolute;
    opacity: 0;
    z-index: 9;
    cursor: pointer;
    transition: opacity .2s;
    color: #FFF;
    font-size: 156pt;
    text-align: center;
    line-height: 380px;
    font-family: "Varela Round", sans-serif;
    background-color: rgba(255, 255, 255, .3);
    text-shadow: 0px 0px 15px rgb(119, 119, 119);
}
.slide:hover + .nav label { opacity: 0.5; }
.nav label:hover { opacity: 1; }
.nav .next { right: 0; }
input:checked + .slide-container  .slide {
    opacity: 1;
    transform: scale(1);
    transition: opacity 1s ease-in-out;
}
input:checked + .slide-container .nav label { display: block; }
.nav-dots {
  width: 100%;
  bottom: 9px;
  height: 11px;
  display: block;
  position: absolute;
  text-align: center;
}
.nav-dots .nav-dot {
  top: -5px;
  width: 11px;
  height: 11px;
  margin: 0 4px;
  position: relative;
  border-radius: 100%;
  display: inline-block;
  background-color: rgba(0, 0, 0, 0.6);
}
.nav-dots .nav-dot:hover {
  cursor: pointer;
  background-color: rgba(0, 0, 0, 0.8);
}
input#img-1:checked ~ .nav-dots label#img-dot-1,
input#img-2:checked ~ .nav-dots label#img-dot-2,
input#img-3:checked ~ .nav-dots label#img-dot-3,
input#img-4:checked ~ .nav-dots label#img-dot-4,
input#img-5:checked ~ .nav-dots label#img-dot-5,
input#img-6:checked ~ .nav-dots label#img-dot-6 {
  background: rgba(0, 0, 0, 0.8);
}
</style>