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HTML

              
                <div class="loading-panel first">
  <div class="icon-wrapper">
    <svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"
	 width="125px" height="100%" viewBox="0 0 33.271 22.313" enable-background="new 0 0 33.271 22.313" xml:space="preserve">
        <path class='cloud' d="M27.244,8.64c0.04-0.319,0.068-0.643,0.068-0.973C27.312,3.432,23.88,0,19.646,0
	c-3.069,0-6.047,2.208-7.047,5.208c-1.625-0.922-3.341-1.195-4.595-0.104c-0.012,0.01-0.019,0.022-0.031,0.033
	c-0.02,0.014-0.042,0.02-0.062,0.034c-1.236,0.875-1.686,2.49-1.336,4.123C6.543,9.292,6.51,9.292,6.51,9.292
	c-3.596,0-6.51,2.914-6.51,6.51c0,3.596,2.914,6.511,6.51,6.511h19.896c3.791,0,6.864-3.073,6.864-6.864
	C33.271,11.941,30.639,9.054,27.244,8.64z"/>
    </svg>
    <div class="icon">
      <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"
	 width="35px" viewBox="0 0 9.652 9.207" enable-background="new 0 0 9.652 9.207" xml:space="preserve">
        <path fill="#D0E2AA" d="M1.898,4.375c0.117-0.545,0.388-1.03,0.773-1.419l0.862,0.91c0.03,0.032,0.069,0.052,0.11,0.061
	c0.033,0.007,0.067,0.006,0.1-0.002c0.075-0.02,0.132-0.08,0.146-0.154l0.666-3.526C4.567,0.18,4.548,0.113,4.502,0.066
	C4.457,0.018,4.39-0.007,4.323,0.001L0.578,0.312C0.5,0.321,0.435,0.373,0.409,0.444c-0.027,0.071-0.01,0.151,0.044,0.208
	l0.958,0.981c-0.658,0.638-1.116,1.449-1.31,2.358C-0.217,5.479,0.224,7.043,1.28,8.178c0.135,0.145,0.307,0.237,0.488,0.276
	c0.279,0.06,0.582-0.008,0.808-0.208C2.949,7.917,2.519,7.641,2.32,7.269C1.87,6.422,1.7,5.302,1.898,4.375z"/>
        <path fill="#D0E2AA" d="M7.754,4.831C7.638,5.376,7.367,5.861,6.981,6.25L6.119,5.34C6.09,5.309,6.051,5.289,6.009,5.28
	c-0.033-0.007-0.067-0.007-0.1,0.002c-0.075,0.02-0.132,0.08-0.146,0.154L5.097,8.961C5.084,9.027,5.104,9.092,5.15,9.14
	c0.044,0.048,0.112,0.072,0.178,0.064l3.745-0.311c0.077-0.009,0.144-0.06,0.17-0.132c0.026-0.07,0.008-0.151-0.045-0.207
	L8.24,7.573C8.898,6.936,9.356,6.125,9.55,5.215c0.318-1.487-0.123-3.053-1.178-4.188C8.237,0.884,8.065,0.791,7.884,0.752
	C7.605,0.692,7.302,0.76,7.076,0.959c-0.373,0.33,0.059,0.605,0.257,0.979C7.783,2.784,7.953,3.904,7.754,4.831z"/>
      </svg>
    </div>
  </div>
</div>
<div class="loading-panel second">
  <div class="icon-wrapper">
    <svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"
	 width="125px" height="100%" viewBox="0 0 33.271 22.313" enable-background="new 0 0 33.271 22.313" xml:space="preserve">
        <path class='cloud' d="M27.244,8.64c0.04-0.319,0.068-0.643,0.068-0.973C27.312,3.432,23.88,0,19.646,0
	c-3.069,0-6.047,2.208-7.047,5.208c-1.625-0.922-3.341-1.195-4.595-0.104c-0.012,0.01-0.019,0.022-0.031,0.033
	c-0.02,0.014-0.042,0.02-0.062,0.034c-1.236,0.875-1.686,2.49-1.336,4.123C6.543,9.292,6.51,9.292,6.51,9.292
	c-3.596,0-6.51,2.914-6.51,6.51c0,3.596,2.914,6.511,6.51,6.511h19.896c3.791,0,6.864-3.073,6.864-6.864
	C33.271,11.941,30.639,9.054,27.244,8.64z"/>
    </svg>
    <div class="icon">
      <svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"
	 width="35px" viewBox="0 0 10.775 9.117" enable-background="new 0 0 10.775 9.117" xml:space="preserve">
        <path fill="#2A7689" d="M9.133,0L8.899,0.224C8.731,0.392,8.563,0.562,8.4,0.735C7.791,1.377,7.177,2.091,6.526,2.916
	C5.96,3.634,5.38,4.419,4.805,5.249C4.653,5.466,4.507,5.68,4.358,5.898L4.329,5.9C4.298,5.943,4.255,5.974,4.198,5.974
	c-0.051,0-0.094-0.023-0.125-0.059L4.058,5.917C3.261,4.906,2.045,3.646,2.045,3.646L0,3.615C2.631,7.569,2.596,7.57,3.365,9.117
	h1.716C5.144,8.991,5.235,8.805,5.265,8.74l0.149-0.317l0.31-0.632c0.21-0.42,0.426-0.843,0.646-1.257
	c0.469-0.883,0.92-1.679,1.379-2.435C8.27,3.239,8.762,2.495,9.255,1.82c0.132-0.179,0.268-0.357,0.402-0.531l0.205-0.261
	l0.203-0.245c0.054-0.068,0.109-0.128,0.162-0.19l0.052-0.059c0.071-0.083,0.143-0.166,0.215-0.24
	C10.587,0.192,10.682,0.095,10.775,0H9.133z"/>
      </svg>
    </div>
  </div>
</div>
              
            
!

CSS

              
                @import "compass/css3";

$duration: 10s;

body {
  height: 100%;
  overflow: hidden;
  background: #000;
}
.loading-panel {
  width: 50%;
  height: 100%;
  position: absolute;
  top: 0px;
  overflow: hidden;
}
.first.loading-panel {
  left: 0;
  background: #D2E3AB;
  animation: slide-in-left $duration ease-out infinite;
}
.second.loading-panel {
  right: 0;
  background: #2A7689;
  animation: slide-in-right $duration ease-out infinite;
}


/* Icons */
.icon-wrapper {
  position: absolute;
  width: 200px;
  height: 200px;
  border-radius: 100%;
  background: rgba(255, 255, 255, 0.3);
  top: 50%;
  margin-top: -100px;
  left: 50%;
  margin-left: -100px;
}
.first.loading-panel .icon-wrapper {
  animation: 
    fade $duration linear infinite,
    slide-in-bottom $duration ease-out infinite;
}
.second.loading-panel .icon-wrapper {
  animation: 
    fade $duration linear infinite,
    slide-in-top $duration ease-out infinite;
}
.icon-wrapper:before {
  content: ' ';
  width: 34%;
  height: 34%;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 100%;
  position: absolute;
}
.first.loading-panel .icon-wrapper:before {
  top: -5%;
  left: -5%;
  animation: 
    late-fade $duration linear infinite,
    circulate-clockwise ($duration / 10) linear infinite;
}
.second.loading-panel .icon-wrapper:before {
  bottom: -5%;
  right: -5%;
  animation: 
    late-fade $duration linear infinite,
    circulate-counterclockwise ($duration / 10) linear infinite;
}

.icon-wrapper {
  position: relative;
  text-align: center;
}
.first.loading-panel .cloud {
  fill: #335367;
}
.second.loading-panel .cloud {
  fill: #fff;
}
.icon-wrapper .icon {
  position: absolute;
  top: 50%;
  width: 100%;
  text-align: center;
  margin-top: -10px;
}
.first.loading-panel .icon {
  animation: spin-clockwise ($duration / 5) ease-out infinite;
}
.second.loading-panel .icon {
  overflow: hidden;
  animation: blind-right ($duration / 7) ease-out infinite;
  left: 50%;
  margin-left: -17px;
}

/* Animations */
@keyframes slide-in-left {
  0% {
    transform: translate(-100%);
  }
  10% {
     transform: translate(0);
  }
  80% {
    transform: translate(0);
  }
  90% {
    transform: translate(-100%);
  }
  100% {
    transform: translate(-100%);
  }
}
@keyframes slide-in-right {
  0% {
    transform: translate(100%);
  }
  10% {
     transform: translate(0);
  }
  80% {
     transform: translate(0);
  }
  90% {
    transform: translate(100%);
  }
  100% {
    transform: translate(100%);
  }
}
@keyframes slide-in-bottom {
  0% {
    top: 120%;
  }
  10% {
    top: 120%;
  }
  15% {
     top: 50%;
  }
  75% {
     top: 50%;
  }
  80% {
    top: 120%;
  }
  100% {
    top: 120%;
  }
}
@keyframes slide-in-top {
  0% {
    top: -20%;
  }
  10% {
    top: -20%;
  }
  15% {
     top: 50%;
  }
  75% {
     top: 50%;
  }
  80% {
    top: -20%;
  }
  100% {
    top: -20%;
  }
}
@keyframes fade {
  0% {
    opacity: 0;
  }
  10% {
    opacity: 0;
  }
  15% {
     opacity: 1;
  }
  75% {
     opacity: 1;
  }
  80% {
    opacity: 0;
  }
  100% {
    opacity: 0;
  }
}
@keyframes late-fade {
  0% {
    opacity: 0;
  }
  15% {
    opacity: 0;
  }
  20% {
    opacity: 1;
  }
  70% {
    opacity: 1;
  }
  75% {
    opacity: 0;
  }
  100% {
    opacity: 0;
  }
}
@keyframes circulate-clockwise {
  0% {
    transform: translate(0, 0);
  }
  25% {
     transform: translate(10%, 10%);
  }
  50% {
     transform: translate(0%, 20%);
  }
  75% {
    transform: translate(-10%, 10%);
  }
}
@keyframes circulate-counterclockwise {
  0% {
    transform: translate(0, 0);
  }
  25% {
     transform: translate(-10%, 10%);
  }
  50% {
     transform: translate(0%, 20%);
  }
  75% {
    transform: translate(10%, 10%);
  }
}
@keyframes spin-clockwise {
  0% {
    transform: rotate(0deg);
  }
  25% {
    transform: rotate(90deg);
  }
  50% {
    transform: rotate(180deg);
  }
  75% {
    transform: rotate(270deg);
  }
  100% {
    transform: rotate(360deg);
  }
}
@keyframes blind-right {
  0% {
    width: 0;
    opacity: 0;
  }
  1% {
    width: 0;
    opacity: 1;
  }
  50% {
    width: 35px;
    opacity: 1;
  }
  99% {
    width: 35px;
    opacity: 0;
  }
  100% {
    width: 0;
    opacity: 0;
  }
}
              
            
!

JS

              
                
              
            
!
999px

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