html, body {
  margin: 0;
}




pre {
  font-size: .75em;
  background: #222; color: #fff;
  padding: 20px;
}
.box {
  position: relative;
  width: 50%; height: 30vh;
 margin: 10px; box-shadow: 0 0 10px rgba(0,0,0,.3);
  text-align: center;
  color: #fff;
  font-size: 0.8em;
  padding: 10px;
}
.box:nth-child(2) { background: #f8c82d; }
.box:nth-child(3) { background: #0aba58; }
a {
  color: inherit;
}

.delighter.splash {
  transition: all 2s ease-out;
}
.delighter.splash.ended {
  background: #fff;
}
.delighter.right { transform:translate(-100%); opacity:0; transition: all .75s ease-out; }
.delighter.right.started { transform:none; opacity:1; }

.delighter.left { transform:translate(100%); opacity:0; transition: all .75s ease-out; }
.delighter.left.started { transform:none; opacity:1; }

.delighter.bottom { transform:translatey(300%); opacity:0; transition: all .75s ease-out; }
.delighter.bottom.started { transform:none; opacity:1; }

.delighter li { opacity: 0; transform: translatey(400%); transition: all .7s ease-out; }
.delighter.started li { opacity: 1; transform: none; }
.delighter.started li:nth-child(1) { transition: all .7s ease-out .1s; }
.delighter.started li:nth-child(2) { transition: all .7s ease-out .3s; }
.delighter.started li:nth-child(3) { transition: all .7s ease-out .5s; }
.delighter.started li:nth-child(4) { transition: all .7s ease-out .7s; }
.delighter.started li:nth-child(5) { transition: all .7s ease-out .9s; }
.delighter.started li:nth-child(6) { transition: all .7s ease-out 1.1s; }
.delighter.started li:nth-child(7) { transition: all .7s ease-out 1.3s; }

.delighter li { opacity: 0; transform: translatey(400%); transition: all .7s ease-out; }
.delighter.started{ opacity: 1; transform: none; }
.delighter.started:nth-child(1) { transition: all .7s ease-out .1s; }
.delighter.started:nth-child(2) { transition: all .7s ease-out .3s; }
.delighter.started:nth-child(3) { transition: all .7s ease-out .5s; }
.delighter.started:nth-child(4) { transition: all .7s ease-out .7s; }
.delighter.started:nth-child(5) { transition: all .7s ease-out .9s; }
.delighter.started:nth-child(6) { transition: all .7s ease-out 1.1s; }
.delighter.started:nth-child(7) { transition: all .7s ease-out 1.3s; }

.delighter pre {
  display: block; transition: all 2s ease-out; opacity: 0;
  padding: 20px 0;
  width: 1px; overflow: hidden;
}
.delighter.started pre {
  max-width: 99999px; width: 100%; opacity: 1;
}
.delighter .box { transition: all 1s ease-out; }
.delighter .box:nth-child(1) { transform: translate(-100%, 0); }
.delighter .box:nth-child(2) { transform: translate(170%, -70%); }
.delighter .box:nth-child(3) { transform: translate(20%, 0%); }

.delighter.started .box:nth-child(1) { transform: translate(0, 0); }
.delighter.started .box:nth-child(2) { transform: translate(70%, -70%); }
.delighter.started .box:nth-child(3) { transform: translate(20%, -120%); }


.foo.delighter {
      transition: all .3s ease-out;
      transform: translateX(-100%);
      opacity: 0;
   }

   /* the .started class is set when the top
      of [data-delighter] is at 0.75 of the viewport 
      (where 0 is top and 1 is bottom) */

.foo.delighter.started {
      transform: none;
      opacity: 1;
   }

   /* an extra .ended state is set when the bottom 
      of [data-delighter] is at 0.75 of the viewport
      (where 0 is top and 1 is bottom) */

.foo.delighter.started.ended {
      border: solid #a59063 10px;
   }