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CSS

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HTML 

              
                <div class="pixelme">
	
		<svg version="1.1" id="Alo" x="0px" y="0px" width="285px" height="285px" viewBox="0 0 200 200">
			<polygon id="Tempe" class="st14" points="74,85.7 74,92.4 80.7,92.4 80.7,85.7 		"/>
			<polygon id="Cheveux_dessus" class="st9" points="67,72.7 67.3,65.1 71.5,63.2 72.9,57.3 79,56.9 80.4,51.8 86.9,51.5 86.8,45.8 
				87.6,44.4 93.7,38.4 147.9,38.4 148.4,46.5 96,47.2 95.1,54.3 88.2,54.3 88.3,60 81.6,59.7 81.6,66.8 74.9,66.9 74.8,73.3 		"/>
			<polygon id="Peau" class="st11" points="67.2,166.3 74,166.3 74,119.8 60.5,119.8 60.5,112.5 53.8,112.5 53.8,99 60.5,99 
				60.5,92.3 80.7,92.3 80.7,72 87.4,72 87.4,65.4 94.2,65.4 94.2,58.6 161.4,58.6 161.4,146 154.7,146 154.7,159.5 147.9,159.5 
				147.9,166.2 141.2,166.2 141.2,194.4 67,194.4 80.7,179.8 74,179.8 74,173.1 67.2,173.1 		"/>
			<polyline id="Barbe" class="st8" points="71.6,99.1 71.2,146.2 80.7,146.2 80.7,156 86.6,156.2 86.5,161.6 93.9,161.8 93.3,166.8 
				99.8,167.1 100,173.1 141.2,173.1 141.2,166.4 148,166.4 148,159.7 154.7,159.7 154.7,146.2 161.4,146.2 161.4,139.5 154.7,139.5 
				154.7,146.2 148,146.2 141.3,146.2 141.3,166.4 107.8,166.4 107.8,159.7 114.3,159.7 114.3,146.3 141.3,146.2 141.3,139.3 
				114.2,139.3 114.3,146.3 107.7,146.3 107.8,159.7 101,159.7 100.9,151.7 94.4,151 94.3,145.1 87.4,145.4 87.5,139.5 80.7,138.5 
				80.7,99 74,99.1 		"/>
			<polygon id="Shirt" class="st2" points="13.4,200 13.4,193.3 20.2,193.3 20.2,186.9 26.9,186.9 26.9,179.8 40.3,179.8 40.3,173.1 
				74,173.1 74,179.8 80.7,179.8 80.7,186.5 87.4,186.5 87.4,193.3 114.3,193.3 114.3,186.5 121,186.5 121,173.1 154.7,173.1 
				154.7,179.8 161.4,179.8 161.4,186.5 168.1,186.5 168.1,193.3 174.9,193.3 174.9,200 		"/>
			<polygon id="Chevelure" class="st15" points="74,146.2 53.8,146.2 53.8,139.5 60.5,139.5 60.5,119.3 67.3,119.3 67.3,92.4 
				60.5,92.4 60.5,65.5 67.3,65.5 67.3,52 74,52 74,45.3 80.7,45.3 80.7,38.6 87.4,38.6 87.4,31.9 100.9,31.9 100.9,25.1 114.3,25.1 
				114.3,31.9 147.9,31.9 147.9,38.6 154.7,38.6 154.7,45.3 161.4,45.3 161.4,58.8 168.1,58.8 168.1,72.2 161.4,72.2 161.4,58.8 
				154.7,58.8 154.7,45.3 147.9,45.3 147.9,38.6 94.1,38.6 94.1,45.3 87.3,45.3 87.3,52 80.8,52 80.8,58.8 74.1,58.8 74.1,65.5 
				67.3,65.5 67.3,92.4 74.1,92.4 		"/>
			<polygon id="Cheveux_front" class="st4" points="67.3,92.4 67.3,72.2 74,72.2 74,65.5 80.7,65.5 80.7,58.8 87.3,58.8 87.3,52 
				94.2,52 94.2,45.3 154.7,45.3 154.7,52 94.2,52 94.2,58.8 87.4,58.8 87.4,65.5 80.7,65.5 80.7,72.3 74,72.2 74,92.4 		"/>
			<polygon id="Ombre_cheveux" class="st10" points="154.7,58.8 154.7,52 94.1,52 94.1,58.8 87.4,58.8 87.4,65.5 80.7,65.5 
				80.7,72.1 87.4,72.1 87.4,65.5 94.2,65.5 94.1,58.8 		"/>
			<polygon id="Cheveux_oreille" class="st6" points="80.7,72.2 74,72.2 74,85.7 80.7,85.7 		"/>
			<polygon id="Lunettes" class="st7" points="74,92.4 74,99.1 100.9,99.1 100.9,105.8 127.8,105.8 127.8,99.1 141.2,99.1 
				141.2,105.8 154.7,105.8 154.7,99.1 161.4,99.1 161.4,92.4 154.7,92.4 154.7,85.7 141.2,85.7 141.2,92.5 127.8,92.5 127.8,85.8 
				100.9,85.8 100.9,92.5 		"/>
			<polygon id="Oeil_gauche" class="st12" points="100.9,92.4 100.9,99.1 121,99.1 121,92.4 		"/>
			<polygon id="Oeil_droit" class="st12" points="141.3,92.4 141.3,99.1 154.7,99.1 154.7,92.4 		"/>
			<polygon id="Sourcil_gauche" class="st8" points="121.1,85.7 100.9,85.7 100.9,78.9 121,78.9 		"/>
			<polygon id="Sourcil_droit" class="st8" points="161.4,92.4 154.7,92.4 154.7,85.7 141.2,85.7 141.2,79 154.7,79 154.7,85.7 
				161.4,85.7 		"/>
			<polygon id="Nez" class="st3" points="141.2,112.6 134.5,112.6 134.5,119.3 121,119.3 121,126 141.2,126 		"/>
			<polygon id="Poils_gauche" class="st10" points="80.7,132.8 80.7,139.5 87.4,139.5 87.4,146.3 94.2,146.3 94.2,152.9 100.9,152.9 
				101,159.7 107.8,159.7 107.8,153.1 101,152.9 101,146.2 94.2,146.3 94.2,139.6 87.4,139.5 87.4,132.8 		"/>
			<polygon id="Poils_droite" class="st10" points="148,146.2 154.7,146.2 154.7,139.5 161.4,139.5 161.4,132.8 154.7,132.8 
				154.7,139.5 148,139.5 		"/>
			<rect id="Bouche" x="121" y="153" class="st3" width="13.4" height="6.7"/>
			<polygon id="Ombre_cou" class="st5" points="80.7,152.9 80.7,166.4 87.4,166.4 87.4,173.1 100.9,173.1 100.9,179.8 121,179.8 
				121,173.1 100.9,173.1 100.9,166.4 94.2,166.4 94.2,159.6 87.4,159.6 87.4,152.9 		"/>
			<rect id="Pupille_gauche_gauche" x="100.8" y="92.4" class="st13" width="6.8" height="6.7"/>
			<rect id="Pupille_gauche_droite" x="114.3" y="92.4" class="st1" width="6.8" height="6.7"/>
			<polygon id="Pupille_droite_gauche" class="st13" points="141.4,92.3 141.4,99.1 148.2,99.1 148.2,92.4 		"/>
			<polygon id="Pupille_droite_droite" class="st1" points="147.9,92.3 147.9,99.1 154.7,99.1 154.7,92.4 		"/>
		</svg>
</div>
!

CSS 

              
                
		@keyframes shake {
			0%{
				transform: translateX(0);
			}
			12.5%{
				transform: translateX(-2px);
			}
			37.5%{
				transform: translateX(2px);
			}
			62.5%{
				transform: translateX(-2px);
			}
			87.5%{
				transform: translateX(2px);
			}
			100%{
				transform: translateX(0);
			}
		}
		
		.Shake{
			-webkit-animation: shake 400ms infinite;
			-moz-animation:  shake 400ms infinite;
			-o-animation: shake 400ms infinite;
			animation:  shake 400ms infinite;
		}
		
		.Rougit{
		fill: #ffd7d2;
		transition: all 3s linear;
		}
		
		.Rougit_2{
		fill: #ffbfb6;
		transition: all 3s linear;
		}
		
		.Rougit_3{
		fill: #fa8879;
		transition: all 3s linear;
		}
		
		.Rougit_3_nez{
		fill: #ff5e49;
		transition: all 3s linear;
		}
		
		.Rougit_3_cheveux{
		fill: #ff6f3d;
		transition: all 3s linear;
		}
		
		
		.st1{fill:#84B971;}
		.st2{fill:#1D1D1B;}
		.st3{fill:#ECCDB6;}
		.st4{fill:#8A7551;}
		.st5{fill:#BAAE97;}
		.st6{fill:#BCAC81;}
		.st7{fill:#252323;}
		.st8{fill:#C29B76;}
		.st9{fill:#978058;}
		.st10{fill:#C7B594;}
		.st11{fill:#FFE9DD;}
		.st12{fill:#FFFFFF;}
		.st13{display:none;fill:#84B971;}
		.st14{fill:#D8C7A0;}
		.st15{fill:#A1885C;}
	
.pixelme{
margin-left:40%;
}
!

JS 

              
                var width;

// Selectors
var Pupille_g_d = document.getElementById("Pupille_gauche_droite");
var Pupille_g_g = document.getElementById("Pupille_gauche_gauche");
var Pupille_d_d = document.getElementById("Pupille_droite_droite");
var Pupille_d_g = document.getElementById("Pupille_droite_gauche");
var Cheveux = document.getElementById("Ombre_cheveux");
var Sourcil_g = document.getElementById("Sourcil_gauche");
var Sourcil_d = document.getElementById("Sourcil_droit");
var Nez = document.getElementById("Nez");
var Bouche = document.getElementById("Bouche");
var Peau = document.getElementById("Peau");
var Alo = document.getElementById("Alo");

var count = 0;

document.addEventListener("mousemove", function(event) {
	mouse_position(event);
});

function mouse_position(e) {
	var x = e.clientX; //Mouse position detection
	
	width = document.body.clientWidth;

	//If the mouse cursor is at the left side of the window
	if (x <= width / 2)
	//Display left look
	{
		Pupille_g_d.style.display = "none";
		Pupille_g_g.style.display = "block";
		Pupille_d_d.style.display = "none";
		Pupille_d_g.style.display = "block";
	}
	else
	//Display right look
	{
		Pupille_g_d.style.display = "block";
		Pupille_g_g.style.display = "none";
		Pupille_d_d.style.display = "block";
		Pupille_d_g.style.display = "none";	
	}
}


//On click on the SVG
document.getElementById("Alo").addEventListener("click", Rage);

function Rage(){
	
	
	//Second state
	if (count == 0){
		Peau.classList.remove("st11");
		Peau.classList.add("Rougit");
	}
	//Third state
	if (count == 1){
		Peau.classList.add("Rougit_2");
	}
	
	//Fourth state 
	if (count == 2){
		Peau.classList.add("Rougit_3");
		Nez.classList.remove("st3");
		Nez.classList.add("Rougit_3_nez");
		Bouche.classList.remove("st3");
		Bouche.classList.add("Rougit_3_nez");
		Alo.classList.add("Shake");
		Cheveux.classList.remove("st10");
		Cheveux.classList.add("Rougit_3_cheveux");
		Sourcil_d.classList.remove("st8");
		Sourcil_d.classList.add("Rougit_3_nez");
		Sourcil_g.classList.remove("st8");
		Sourcil_g.classList.add("Rougit_3_nez");
	}
	
	//Reset the SVG to his first state
	if(count == 3){
		count = -1;
		Peau.classList.add("st11");
		Peau.classList.remove("Rougit_3");
		Peau.classList.remove("Rougit_2");
		Nez.classList.add("st3");
		Nez.classList.remove("Rougit_3_nez");
		Bouche.classList.add("st3");
		Bouche.classList.remove("Rougit_3_nez");
		Alo.classList.remove("Shake");
		Cheveux.classList.add("st10");
		Cheveux.classList.remove("Rougit_3_cheveux");
		Sourcil_d.classList.add("st8");
		Sourcil_d.classList.remove("Rougit_3_nez");
		Sourcil_g.classList.add("st8");
		Sourcil_g.classList.remove("Rougit_3_nez");
	
	}
	
	count++;
}
!
999px

Console