* { 
  margin: 0;
  padding: 0;
}
body {
  font-size: 15px;
  font-family: helvetica, arial, sans-serif;
  padding: 4em;
}
footer, section, article, header, aside, figure, nav {
  display: block;
}

nav {
  padding: 20px;
  z-index: 20;
  top: 0px;
  left: 0;
  background: #fff;
  position: absolute;
}

nav li {
  display: inline;
  padding-right: 1em;
}
nav a {
  background: #369;
  padding: 5px 10px;
  border-radius: 5px;
  color: #fff;
  font-weight: bold;
  text-decoration: none;
}
nav a:hover, nav a:focus {
  background: #036;
}
aside {
  clear: both;
}
aside  a {
  color: #369;
}
aside li {
  padding-bottom: 0.5em;
}
footer {
  clear: both;
  margin: 2em 0;
  font-size: 10px;
}
footer a {
  color: #000;
}

@media screen and (min-width: 400px) {

  .gallery {
    position: relative;
    height: 280px;
    width: 340px;
    overflow: hidden;
    padding-right: 30px;
    float: left;
  }
  .target {
    position: absolute;
  }
  
  
  .left .target{
    top: 60px;
    left: -320px;
    height: 220px;
    width: 300px;
    -webkit-transition: 1s;
       -moz-transition: 1s;
        -ms-transition: 1s;
         -o-transition: 1s;
            transition: 1s;
  }
  .left .target:target {
    top: 60px;
    left: 20px;
  }


  .top .target{
    top: -300px;
    left: 20px;
    height: 220px;
    width: 300px;
    -webkit-transition: 1s;
       -moz-transition: 1s;
        -ms-transition: 1s;
         -o-transition: 1s;
            transition: 1s;
  }
  .top .target:target {
    top: 60px;
  }


  .opacity .target {
    opacity: 0;
    top: 60px;
    left: 20px;
    -webkit-transition: 1s;
       -moz-transition: 1s;
        -ms-transition: 1s;
         -o-transition: 1s;
            transition: 1s;
  }
  .opacity .target:target {
    opacity: 1;
    top: 60px;
    left: 20px;
  }


  .shrink .target {
    opacity: 0;
    top: 60px;
    left: 20px;
    -webkit-transform: scale( 0, 0 );
       -moz-transform: scale( 0, 0 );
        -ms-transform: scale( 0, 0 );
         -o-transform: scale( 0, 0 );
            transform: scale( 0, 0 );
    -webkit-transition: 1s;
       -moz-transition: 1s;
        -ms-transition: 1s;
         -o-transition: 1s;
            transition: 1s;
  }
  .shrink .target:target {
    opacity: 1;
    top: 60px;
    left: 20px;
    -webkit-transform: scale( 1, 1 );
       -moz-transform: scale( 1, 1 );
        -ms-transform: scale( 1, 1 );
         -o-transform: scale( 1, 1 );
            transform: scale( 1, 1 );
  }


  .flip .target {
    opacity: 0;
    top: 60px;
    left: 20px;
    -webkit-transform: rotateY(0);
       -moz-transform: rotateY(0);
        -ms-transform: rotateY(0);
         -o-transform: rotateY(0);
            transform: rotateY(0);
    -webkit-transition: 1s;
       -moz-transition: 1s;
        -ms-transition: 1s;
         -o-transition: 1s;
            transition: 1s;
  }
  .flip .target:target {
    opacity: 1;
    top: 60px;
    left: 20px;
    -webkit-transform: rotateY(360deg);
       -moz-transform: rotateY(360deg);
        -ms-transform: rotateY(360deg);
         -o-transform: rotateY(360deg);
            transform: rotateY(360deg);
  }


  .rotate .target {
    opacity: 0;
    top: 60px;
    left: 20px;
    -webkit-transform: rotateZ(0);
       -moz-transform: rotateZ(0);
        -ms-transform: rotateZ(0);
         -o-transform: rotateZ(0);
            transform: rotateZ(0);
    -webkit-transition: 1s;
       -moz-transition: 1s;
        -ms-transition: 1s;
         -o-transition: 1s;
            transition: 1s;
  }
  .rotate .target:target {
    opacity: 1;
    top: 60px;
    left: 20px;
    -webkit-transform: rotateZ(360deg);
       -moz-transform: rotateZ(360deg);
        -ms-transform: rotateZ(360deg);
         -o-transform: rotateZ(360deg);
            transform: rotateZ(360deg);
  }


}