Generated by SassMeister.com.

SassMeister-input-HTML.html

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<h1 id="author">Demo by <a target="_blank" href="http://creative-punch.net/">Creative Punch</a></h1>

SassMeister-input.sass

// ----
// Sass (v3.4.4)
// Compass (v1.0.1)
// ----

$elements: 80

/* Fiddle with this number for extra trippyness */
/* Come on... You know you want it */
/* Try setting me to 0.01(this is crazy) or 2 or 4, whatever you want! */
$multiplier: 0.5

@keyframes scaling
  0%
    transform: scale(0.5)
  100%
    transform: scale(2)
  
html
  background: #f1f1f1

div.loader
  display: block
  position: relative
  text-align: center
  width: 100%
  margin: 50px auto 

  div
    list-style: none
    display: inline-block
    content: ""
    padding: 10px 2px
    transform: scale(0.5) 
    margin: 0 -1px
    animation: scaling 1s ease-in-out infinite alternate
    transform-origin: center

@for $i from 1 to ($elements + 1)
  div.loader div:nth-child(#{$i})
    animation-delay: #{sin(360deg * ($i / ($elements * $multiplier)))}s
    background-color: hsl((360deg * ($i / $elements)), 50%, 60%)
      
/* Demo credits stuff */
@import url(http://fonts.googleapis.com/css?family=Nixie+One)
h1#author
  text-align: center
  color: #30303F
  width: 100%
  background-color: #ddd
  padding: 10px
  font-family: 'Nixie One'
  text-stroke: 1px
  font-size: 40px
  text-shadow: 0 0 10px #aaa
  
  a
    color: #39D
    text-decoration: none

SassMeister-output.css

/* Fiddle with this number for extra trippyness */
/* Come on... You know you want it */
/* Try setting me to 0.01(this is crazy) or 2 or 4, whatever you want! */
@import url(http://fonts.googleapis.com/css?family=Nixie+One);
@keyframes scaling {
  0% {
    transform: scale(0.5);
  }
  100% {
    transform: scale(2);
  }
}
html {
  background: #f1f1f1;
}

div.loader {
  display: block;
  position: relative;
  text-align: center;
  width: 100%;
  margin: 50px auto;
}
div.loader div {
  list-style: none;
  display: inline-block;
  content: "";
  padding: 10px 2px;
  transform: scale(0.5);
  margin: 0 -1px;
  animation: scaling 1s ease-in-out infinite alternate;
  transform-origin: center;
}

div.loader div:nth-child(1) {
  animation-delay: 0.15643s;
  background-color: #cc6e66;
}

div.loader div:nth-child(2) {
  animation-delay: 0.30902s;
  background-color: #cc7566;
}

div.loader div:nth-child(3) {
  animation-delay: 0.45399s;
  background-color: #cc7d66;
}

div.loader div:nth-child(4) {
  animation-delay: 0.58779s;
  background-color: #cc8566;
}

div.loader div:nth-child(5) {
  animation-delay: 0.70711s;
  background-color: #cc8c66;
}

div.loader div:nth-child(6) {
  animation-delay: 0.80902s;
  background-color: #cc9466;
}

div.loader div:nth-child(7) {
  animation-delay: 0.89101s;
  background-color: #cc9c66;
}

div.loader div:nth-child(8) {
  animation-delay: 0.95106s;
  background-color: #cca366;
}

div.loader div:nth-child(9) {
  animation-delay: 0.98769s;
  background-color: #ccab66;
}

div.loader div:nth-child(10) {
  animation-delay: 1s;
  background-color: #ccb366;
}

div.loader div:nth-child(11) {
  animation-delay: 0.98769s;
  background-color: #ccba66;
}

div.loader div:nth-child(12) {
  animation-delay: 0.95106s;
  background-color: #ccc266;
}

div.loader div:nth-child(13) {
  animation-delay: 0.89101s;
  background-color: #ccc966;
}

div.loader div:nth-child(14) {
  animation-delay: 0.80902s;
  background-color: #c7cc66;
}

div.loader div:nth-child(15) {
  animation-delay: 0.70711s;
  background-color: #bfcc66;
}

div.loader div:nth-child(16) {
  animation-delay: 0.58779s;
  background-color: #b8cc66;
}

div.loader div:nth-child(17) {
  animation-delay: 0.45399s;
  background-color: #b0cc66;
}

div.loader div:nth-child(18) {
  animation-delay: 0.30902s;
  background-color: #a8cc66;
}

div.loader div:nth-child(19) {
  animation-delay: 0.15643s;
  background-color: #a1cc66;
}

div.loader div:nth-child(20) {
  animation-delay: 0.0s;
  background-color: #99cc66;
}

div.loader div:nth-child(21) {
  animation-delay: -0.15643s;
  background-color: #91cc66;
}

div.loader div:nth-child(22) {
  animation-delay: -0.30902s;
  background-color: #8acc66;
}

div.loader div:nth-child(23) {
  animation-delay: -0.45399s;
  background-color: #82cc66;
}

div.loader div:nth-child(24) {
  animation-delay: -0.58779s;
  background-color: #7acc66;
}

div.loader div:nth-child(25) {
  animation-delay: -0.70711s;
  background-color: #73cc66;
}

div.loader div:nth-child(26) {
  animation-delay: -0.80902s;
  background-color: #6bcc66;
}

div.loader div:nth-child(27) {
  animation-delay: -0.89101s;
  background-color: #66cc69;
}

div.loader div:nth-child(28) {
  animation-delay: -0.95106s;
  background-color: #66cc70;
}

div.loader div:nth-child(29) {
  animation-delay: -0.98769s;
  background-color: #66cc78;
}

div.loader div:nth-child(30) {
  animation-delay: -1s;
  background-color: #66cc80;
}

div.loader div:nth-child(31) {
  animation-delay: -0.98769s;
  background-color: #66cc87;
}

div.loader div:nth-child(32) {
  animation-delay: -0.95106s;
  background-color: #66cc8f;
}

div.loader div:nth-child(33) {
  animation-delay: -0.89101s;
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}

div.loader div:nth-child(34) {
  animation-delay: -0.80902s;
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}

div.loader div:nth-child(35) {
  animation-delay: -0.70711s;
  background-color: #66cca6;
}

div.loader div:nth-child(36) {
  animation-delay: -0.58779s;
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}

div.loader div:nth-child(37) {
  animation-delay: -0.45399s;
  background-color: #66ccb5;
}

div.loader div:nth-child(38) {
  animation-delay: -0.30902s;
  background-color: #66ccbd;
}

div.loader div:nth-child(39) {
  animation-delay: -0.15643s;
  background-color: #66ccc4;
}

div.loader div:nth-child(40) {
  animation-delay: 0.0s;
  background-color: #66cccc;
}

div.loader div:nth-child(41) {
  animation-delay: 0.15643s;
  background-color: #66c4cc;
}

div.loader div:nth-child(42) {
  animation-delay: 0.30902s;
  background-color: #66bdcc;
}

div.loader div:nth-child(43) {
  animation-delay: 0.45399s;
  background-color: #66b5cc;
}

div.loader div:nth-child(44) {
  animation-delay: 0.58779s;
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}

div.loader div:nth-child(45) {
  animation-delay: 0.70711s;
  background-color: #66a6cc;
}

div.loader div:nth-child(46) {
  animation-delay: 0.80902s;
  background-color: #669ecc;
}

div.loader div:nth-child(47) {
  animation-delay: 0.89101s;
  background-color: #6696cc;
}

div.loader div:nth-child(48) {
  animation-delay: 0.95106s;
  background-color: #668fcc;
}

div.loader div:nth-child(49) {
  animation-delay: 0.98769s;
  background-color: #6687cc;
}

div.loader div:nth-child(50) {
  animation-delay: 1s;
  background-color: #667fcc;
}

div.loader div:nth-child(51) {
  animation-delay: 0.98769s;
  background-color: #6678cc;
}

div.loader div:nth-child(52) {
  animation-delay: 0.95106s;
  background-color: #6670cc;
}

div.loader div:nth-child(53) {
  animation-delay: 0.89101s;
  background-color: #6669cc;
}

div.loader div:nth-child(54) {
  animation-delay: 0.80902s;
  background-color: #6b66cc;
}

div.loader div:nth-child(55) {
  animation-delay: 0.70711s;
  background-color: #7366cc;
}

div.loader div:nth-child(56) {
  animation-delay: 0.58779s;
  background-color: #7a66cc;
}

div.loader div:nth-child(57) {
  animation-delay: 0.45399s;
  background-color: #8266cc;
}

div.loader div:nth-child(58) {
  animation-delay: 0.30902s;
  background-color: #8a66cc;
}

div.loader div:nth-child(59) {
  animation-delay: 0.15643s;
  background-color: #9166cc;
}

div.loader div:nth-child(60) {
  animation-delay: 0.0s;
  background-color: #9966cc;
}

div.loader div:nth-child(61) {
  animation-delay: -0.15643s;
  background-color: #a166cc;
}

div.loader div:nth-child(62) {
  animation-delay: -0.30902s;
  background-color: #a866cc;
}

div.loader div:nth-child(63) {
  animation-delay: -0.45399s;
  background-color: #b066cc;
}

div.loader div:nth-child(64) {
  animation-delay: -0.58779s;
  background-color: #b866cc;
}

div.loader div:nth-child(65) {
  animation-delay: -0.70711s;
  background-color: #bf66cc;
}

div.loader div:nth-child(66) {
  animation-delay: -0.80902s;
  background-color: #c766cc;
}

div.loader div:nth-child(67) {
  animation-delay: -0.89101s;
  background-color: #cc66c9;
}

div.loader div:nth-child(68) {
  animation-delay: -0.95106s;
  background-color: #cc66c2;
}

div.loader div:nth-child(69) {
  animation-delay: -0.98769s;
  background-color: #cc66ba;
}

div.loader div:nth-child(70) {
  animation-delay: -1s;
  background-color: #cc66b2;
}

div.loader div:nth-child(71) {
  animation-delay: -0.98769s;
  background-color: #cc66ab;
}

div.loader div:nth-child(72) {
  animation-delay: -0.95106s;
  background-color: #cc66a3;
}

div.loader div:nth-child(73) {
  animation-delay: -0.89101s;
  background-color: #cc669c;
}

div.loader div:nth-child(74) {
  animation-delay: -0.80902s;
  background-color: #cc6694;
}

div.loader div:nth-child(75) {
  animation-delay: -0.70711s;
  background-color: #cc668c;
}

div.loader div:nth-child(76) {
  animation-delay: -0.58779s;
  background-color: #cc6685;
}

div.loader div:nth-child(77) {
  animation-delay: -0.45399s;
  background-color: #cc667d;
}

div.loader div:nth-child(78) {
  animation-delay: -0.30902s;
  background-color: #cc6675;
}

div.loader div:nth-child(79) {
  animation-delay: -0.15643s;
  background-color: #cc666e;
}

div.loader div:nth-child(80) {
  animation-delay: 0.0s;
  background-color: #cc6666;
}

/* Demo credits stuff */
h1#author {
  text-align: center;
  color: #30303F;
  width: 100%;
  background-color: #ddd;
  padding: 10px;
  font-family: "Nixie One";
  text-stroke: 1px;
  font-size: 40px;
  text-shadow: 0 0 10px #aaa;
}
h1#author a {
  color: #39D;
  text-decoration: none;
}

SassMeister-rendered.html

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<h1 id="author">Demo by <a target="_blank" href="http://creative-punch.net/">Creative Punch</a></h1>