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HTML

              
                <figure class="resize-box">
  <div class="webcam"></div>
	<div class="device-border">
		<div class="screen-mask">
			<svg class="resizable" version="1.1" xmlns="http://www.w3.org/2000/svg" x="0px"
			y="0px" width="506px" height="371.849px" viewBox="0 0 506 371.849">
				<g class="body">
					<rect class="nav-dark" fill="#0079C2" width="26.5%" height="29.021" viewBox="0 0 506 371.849"/>
					<rect class="nav-light" x="143" fill="#00AAFF" width="72%" height="29.021"/>
					<rect class="hero" y="40" fill="#00AAFF" width="364" height="124.011"/>
					<rect class="project proj-3" x="248.477" y="175.011" fill="#00AAFF" width="115.523" height="105"/>
					<rect class="caption" y="290.011" fill="#00AAFF" width="364" height="49"/>
					<rect class="etc" y="351.24" fill="#00AAFF" width="364" height="20.608"/>
					<rect class="project proj-2" x="123.989" y="175.011" fill="#00AAFF" width="115.523" height="105"/>
					<rect class="project proj-1" y="175.011" fill="#00AAFF" width="115.523" height="105"/>
				</g>
				<rect class="sidebar side-1" x="374" y="40" fill="#C4C4C4" width="132" height="124.011"/>
				<rect class="sidebar side-2" x="374" y="174.011" fill="#C4C4C4" width="132" height="56"/>
				<rect class="sidebar side-3" x="374" y="241.011" fill="#C4C4C4" width="132" height="130.838"/>
			</svg>
		</div>
	</div>
</figure>
              
            
!

CSS

              
                @import "compass/css3";

// MIXINS

@mixin keyframes($name) {
	@-o-keyframes #{$name} { @content };
	@-moz-keyframes #{$name} { @content };
	@-webkit-keyframes #{$name} { @content }; 
	@keyframes #{$name} { @content };
}

//called hero-animation because it's specific to a hero-image of a website I'm working on:
@mixin hero-animation($animation) {
	-o-animation: $animation 12s infinite alternate backwards ease-in-out;
	-moz-animation: $animation 12s infinite alternate backwards ease-in-out;
	-webkit-animation: $animation 12s infinite alternate backwards ease-in-out;
	animation: $animation 12s infinite alternate backwards ease-in-out;
}

@mixin prefixer ($property, $value,
				 $moz:    true,
				 $webkit: true,
				 $o:      false,
				 $ms:     true,
				 $spec:   true) {
	@if $moz    {    -moz-#{$property}: $value; }
	@if $webkit { -webkit-#{$property}: $value; }
	@if $o      {      -o-#{$property}: $value; }
	@if $ms     {     -ms-#{$property}: $value; }
	@if $spec   {         #{$property}: $value; }
}


// ANIMATION LOOP
$things-animating: device-border, resizable, nav-dark, nav-light, sidebar, body, hero, proj-1, proj-2, proj-3, caption, webcam;

@each $class in $things-animating {
		.#{$class} {
			@include hero-animation($class);
		}
}


//OTHER CSS

body {
  background-color: #ffaa72;
}

.resize-box {
	height: 371px;
	width: 700px;
  margin: 30px auto;
}

.device-border {
	border-radius: 10px;
	border: 30px solid black;
	display: block;
	height: 100%;
	margin: 0 auto;
	width: 100%;
  background: white;
}

.resizable {
	@include prefixer(transform-origin, 50% 0%);
	display: block;
	margin: 5px auto -2px;
	width: 500px;
}

.screen-mask {
	display: block;
	height: 100%;
	margin: 0 auto;
	overflow: hidden;
	width: 100%;
}

.nav-light {
	@include prefixer(transform-origin, 0% 0%);
}

.webcam {
  background: #0079c2;
  border-radius: 50%;
  display: block;
  height: 5px;
  margin: 10px auto -20px;
  position: relative;
  width: 5px;
}


// ANIMATIONS

@include keyframes(device-border) {
	0% {
		height: 100%;
		width: 100%;
	}
	20% {
		width: 72%;
	}
	65% {
		border: 15px solid black;
		border-bottom: 30px solid black;
		border-radius: 10px;
		border-top: 30px solid black;
		height: 85%;
		width: 36.5%;
	}
	100% {
		border: 10px solid black;
		border-bottom: 30px solid black;
		border-radius: 5px;
		border-top: 25px solid black;
		height: 50%;
		width: 15%;
	}
}

@include keyframes(resizable) {
	0% {
		margin: 5px auto -2px;
		width: 500px;
	}
	20% {
		width: 95%;
	}
	35% {
		width: 500px;
	}
	65% {
		width: 500px;
	}
}

@include keyframes(nav-dark) {
	0%   {
		@include transform(scaleX(1));
	}
	25% {
		@include transform(scaleX(1));
	}
	30% {
		 @include transform(scaleX(0.6));
	}
	65%   {
	 @include transform(scaleX(0.4));
	}
	100%   {
		@include transform(scaleX(0.28));
	}
}

@include keyframes(nav-light) {
	0%   {
		@include transform(translateX(0px) scaleX(1));
	}
	25% {
		@include transform(translateX(0px) scaleX(1));
	}
	30% {
		 @include transform(translateX(-50px) scaleX(.75));
	}
	65%   {
	 @include transform(translateX(-83px) scaleX(.48));
	}
	100%   {
		@include transform(translateX(-100px) scaleX(.18));
	}
}

@include keyframes(sidebar) {
	0%   {
		opacity: 1;
	}
	25% {
		opacity: 1;
	}  
	30% {
		opacity: 0;
	}
}

@include keyframes(body) {
	0%   {
		 @include transform(translateX(0));
	}
	25% {
		 @include transform(translateX(0));
	}  
	30% {
		@include transform(translateX(8%));
	}
	65% {
		@include transform(translateX(2%));
	}
}

@include keyframes(hero) {
	0%   {
		@include transform(scaleX(1));
	}
	25% {
		@include transform(scaleX(1));
	}
	30% {
		 @include transform(scaleX(1));
	}
	65%   {
	 @include transform(scaleX(0.65) translateY(0) scaleY(1));
	}
	100%   {
		@include transform(scaleX(0.3) translateY(3px) scaleY(0.8));
	}
}


@include keyframes(proj-1) {
	0%   {
		@include transform(scaleX(1));
	}
	25% {
		@include transform(scaleX(1));
	}
	30% {
		 @include transform(scaleX(1));
	}
	65%   {
	 @include transform(scaleX(0.65) translateY(0px));
	}
	75% {
	 @include transform(scaleX(0.85) translateY(-10px));
	}
	90% {
		@include transform(scaleX(0.58) translateY(-25px));
	}
	100%   {
		@include transform(scaleX(1.2) translateY(-35px));
	}
}

@include keyframes(proj-2) {
	0%   {
		@include transform(scaleX(1));
	}
	25% {
		@include transform(scaleX(1));
	}
	30% {
		 @include transform(scaleX(1));
	}
	65%   {
	 @include transform(scaleX(0.65) translateY(0px));
	}
	75% {
	 @include transform(scaleX(0.85) translateY(-10px));
		opacity: 1;
	}
	90% {
		opacity: 1;
		@include transform(scaleX(0.58) translateY(-25px));
	}
	93% {
		opacity: 0;
		@include transform(scaleX(0.6) translateY(-30px));
	}
	100%   {
		opacity: 1;
		@include transform(scaleX(1.2) translateY(-35px));
	}
}

@include keyframes(proj-3) {
	0%   {
		@include transform(scaleX(1));
	}
	25% {
		@include transform(scaleX(1));
	}
	30% {
		 @include transform(scaleX(1));
	}
	65%   {
	 @include transform(scaleX(0.65) scaleY(1));
		opacity: 1;
	}
	75% {
		opacity: 0;
	 @include transform(scaleX(1) scaleY(1));
	}
	100%   {
	 opacity: 1;
	 @include transform(scaleX(1) scaleY(0.8));
	}
}

@include keyframes(caption) {
	0%   {
		@include transform(scaleX(1));
	}
	25% {
		@include transform(scaleX(1));
	}
	30% {
		 @include transform(scaleX(1));
	}
	65%   {
	 @include transform(scaleX(0.65));
	}
	100%   {
		@include transform(scaleX(0.3));
	}
}

@include keyframes(webcam) {
	0%   {
    background: #0079c2;
	}
	65%   {
    border-radius: 50%;
    background: #0079c2;
    padding: 0;
    width: 5px;
	}
	100%   {
    background: white;
    border-radius: 10px;
    width: 25px;
  }
}
              
            
!

JS

              
                // A responsive animation created with .svg's and css shapes
              
            
!
999px

Console