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HTML 

              
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					<circle fill="#FFDF9F" cx="219.3" cy="222.5" r="4.5"/>
				</g>
				<g id="cat-eye-right">
					<circle fill="#FFDF9F" cx="237" cy="222.5" r="4.5"/>
				</g>
				<g id="cat-eye-left-pupil">
					<circle fill="#171E2B" cx="219.3" cy="222.5" r="2.8"/>
				</g>
				<g id="cat-eye-right-pupil">
					<circle fill="#171E2B" cx="237" cy="222.5" r="2.8"/>
				</g>
				</g>
			</g>
		</g>
	</g>
</g>
</svg>
	
</div>

<footer>
	<h2 class="footer__title">About this pen:</h2>
	<h3 class="footer__subtitle">Christmass Tree </h3>
	<p class="footer__parragraph">I decided to make a Christmas pen :) I'm very interested in SVG lately, I'm trying to read about it the best I can. The design was exported from Adobe Illustrator and then cleaned a little bit on code editor.</p>
	
	<p class="footer__parragraph">References:</p>
	
	<ul class="footer__list">
		<li><a target="_blank" href="https://www.sarasoueidan.com/blog/svg-tips-for-designers/">SVG tips for designers by Sara Soueidan.</a> I used it as a reference to export my design as SVG from Adobe Illustrator.</li>
		<li><a target="_blank" href="https://dribbble.com/shots/4039666-Christmas-Tree">Christmas-Tree - Original Design by me.</a> :D Yes, I love cats.</li>
		<li><a target="_blank" href="https://www.youtube.com/watch?v=_42HpXlGpfk&index=1&list=PLkEZWD8wbltlSS_d_7tx_H_FBNVro8918">Greensock for Beginners.</a> It's my first time using GreenSock :D I hope to practice more, and share a lot of pens with you.</li>
		<li><a target="_blank" href="https://coolors.co/42ce8e-ffdf9f-dd4e85-d10f50-39445b">Color Palette.</a> Feel free to use it.</li>
		
	</ul>

	<p class="copyright">An awesome pen made by <a target="_blank" href="https://codepen.io/AngelaVelasquez">Angela</a></p>
</footer>
!

CSS 

              
                
@import url('https://fonts.googleapis.com/css?family=Source+Sans+Pro:300,400,900');

/* Color Palette */

$color-background: #171E2B;
$color-background-light: #39445B;

$color-yellow: #FFDF9F;
$color-green: #42CE8E;

/* General Styles */

body {
	background: $color-background;
	font-family: 'Source Sans Pro', sans-serif;
}

.sections {
	padding: 40px 12vw;
	@media (min-width: 960px) {
  	padding: 40px calc( (100% - 600px)/2 );
	}
}

.container {
	width: 100%;
}

svg {
	width: 100%;
	max-height: 100vh;
}

#cat {
	opacity: 0;
	cursor: pointer;
}

.shadow-2, .shadow-1 {
	opacity: 0;
}

/* Footer */

footer {
	@extend .sections;
	background-color: $color-background-light;
	color: white;
}

.footer__title {
	font-weight: bold;
	font-size: 30px;
	margin-top: 40px;
}

.footer__subtitle {
	font-size: 22px;
	color: $color-yellow;
}

.footer__parragraph {
	line-height: 1.5em;
	font-size: 22px;
	a {
		color: $color-green;
	}
}

.footer__list {
	@extend .footer__parragraph;
}

.copyright {
	@extend .footer__parragraph;
	text-align: center;
	border-top: 1px dashed rgba(white,.15);
	padding: 10px 0;
	margin: 40px auto;
}
!

JS 

              
                //Magic goes here... 

var cat = document.getElementById("cat"),
		shadowBack = document.getElementsByClassName("shadow-2"),
		shadowMed = document.getElementsByClassName("shadow-1"),
		tlc = new TimelineLite();
		tl = new TimelineLite();

tlc
	.fromTo(cat, 1, {opacity:1, y:60}, {opacity:1, y:0, delay:2, ease:Power4.easeOut});

tl 
	.fromTo(shadowBack, 2, {opacity:0}, {opacity:.5, repeat:-1, yoyo:true, delay:.5})
	.fromTo(shadowMed, 2, {opacity:.25}, {opacity:.5, repeat:-1, yoyo:true,})


cat.onmouseover = function(e) {
	tlc.reverse();
};
cat.onmouseout = function(e) {
	tlc.play();
};
!
999px

Console