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HTML

CSS

CSS Base

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HTML

              
                <body>
    <div class="fire-on"></div>
	
    <div class="switch-wrap">
		<div id="switch">
			<div id="circle"></div>
		</div>
    </div>
	
    <div class="name">CSS<span>spark</span></div>
	
	<div class="section-center">
		<div class="moon">
			<div></div>
			<div></div>
			<div></div>
		</div>
		<div class="shooting-star"></div>
		<div class="shooting-star-2"></div>
		<div class="star"></div>
		<div class="star snd"></div>
		<div class="star trd"></div>
		<div class="star fth"></div>
		<div class="star fith"></div>
		<div class="circle"></div>
		<div class="wood-circle"></div>
		<div class="wood"></div>
		<div class="tree-1"></div>
		<div class="tree-2"></div>
		<div class="fire">
			<span></span>
			<span></span>
			<span></span>
		</div>
		<div class="smoke">
			<span class="s-0"></span>
			<span class="s-1"></span>
			<span class="s-2"></span>
			<span class="s-3"></span>
			<span class="s-4"></span>
			<span class="s-5"></span>
			<span class="s-6"></span>
			<span class="s-7"></span>
			<span class="s-8"></span>
			<span class="s-9"></span>
		</div>
	</div>
  	<!-- Link to page
	================================================== -->

  <a href="https://themeforest.net/user/ig_design/portfolio"      class="link-to-portfolio cursor-link" target=”_blank”       ></a>
</body>
              
            
!

CSS

              
                
/* ======================================== * 
		    BEST VIEWED FULLSCREEN
   https://codepen.io/ig_design/full/NeRxzj
 * ======================================== */

@import url('https://fonts.googleapis.com/css?family=Poppins:400,500,600,700,800,900');
@import url('https://fonts.googleapis.com/css?family=Dancing+Script');

body{
	width: 100%;
	display: block;
	overflow: hidden;
	height: 100vh;
	background: linear-gradient(#0a171d, #000);
	font-family: 'Poppins', sans-serif;
}
.fire-on{
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: linear-gradient(#1d4456, #112630);
	opacity: 1;
	z-index: 1;
	-webkit-transition: all 1200ms linear;
	transition: all 1200ms linear; 
}
.name{
	position: absolute;
	bottom: -10px;
	left: -50%;
	width: 200%;
	opacity: 1;
	z-index: 2;
	font-size: 17vw;
	line-height: 1;
	font-weight: 700;
	text-align: center;
	background: linear-gradient(rgba(100,100,100,0), rgba(100,100,100,0.2));
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
}
.name span{
	font-family: 'Dancing Script', cursive;
	font-weight: 400;
}
.switch-wrap {
	position: absolute;
	top: 50%;
	left: 50%;
	z-index: 200;
    transform: translateX(-50%);
	margin-top: 200px;
	-webkit-transition: all 500ms linear;
	transition: all 500ms linear; 
}
#switch,
#circle {
	height: 31px;
	cursor: pointer;
	-webkit-transition: all 0.4s cubic-bezier(0.54, 1.6, 0.5, 1);
		transition: all 0.4s cubic-bezier(0.54, 1.6, 0.5, 1);
} 
#switch {
	width: 60px;
	margin: 0 auto;
	border: 2px solid #fec22a;
	border-radius: 27px;
	background: #ff9400;
	position: relative;
	display: inline-block;
	margin: 0 20px;
    transform: translateY(10px);
}
#circle {
	margin-top: 5%;
	margin-left: 5%;
	width: 40%;
	height: 80%;
	border-radius: 50%;
	box-shadow: 0 4px 4px rgba(26,53,71,0.25), 0 0 0 1px rgba(26,53,71,0.07);
	background: #e9e5d5;
}
.switched {
	border-color: #777 !important;
	background: #000 !important;
}
.switched #circle {
	margin-left: 55%;
	background: #e9e5d5;
}
.section-center{
	position: relative;
	width: 400px;
	height: 400px;
	top: 50%;
	left: 50%;
	display: block;
	overflow: hidden;
	border: 10px solid rgba(0,0,0,.2);
	border-radius: 50%;
	z-index: 5;
	background-color: #1d4456;
	box-shadow: 0 0 50px 5px rgba(255,148,0,.1);
	transform: translate(-50%, -50%);
}
.wood {
	position: absolute;
	z-index: 21;
	left: 50%; 
	bottom: 12%;
	width: 100px;
	margin-left: -50px;
	height: 36px;
	background-image: url('https://ivang-design.com//svg-load/air/wood.png');
	background-size: 100px 36px;
}
.wood-circle {
	position: absolute;
	z-index: 20;
	left: 50%; 
	bottom: 11%;
	width: 120px;
	margin-left: -60px;
	height: 26px;
	border-radius: 100%;
	background-color: #0a171d;
}
.circle {
	position: absolute;
	z-index: 6;
	right: -300px; 
	bottom: -450px;
	width: 750px;
	height: 700px;
	border-radius: 100%;
	background-color: #112630;
}
.moon{
	position: absolute;
	top: 50px;
	left: 115px;
	width: 80px;
	display: block;
	height: 80px;
	background-color: #b2b7bc;
	border-radius: 50%;
	transform: translate(-50%, -50%);
	box-shadow: 
		inset -20px 2px 0 0px #c0c3c9,
        0 0 10px 5px rgba(228,228,222,.4);
	z-index: 1;
	animation: brilla-moon 4s alternate infinite;
}
.moon div:nth-child(1) {
	position: absolute;
	top: 50%;
	left: 10%;
	width: 12%;
	height: 12%;
	border-radius: 50%;
	border: 1px solid #adaca2;
	border-radius: 50%;
	box-shadow: inset 2px -1px 0 0px #85868b;
	opacity: 0.4;
}
.moon div:nth-child(2) {
	position: absolute;
	top: 20%;
	left: 38%;
	width: 16%;
	height: 16%;
	border-radius: 50%;
	border: 1px solid #adaca2;
	border-radius: 50%;
	box-shadow: inset 2px -1px 0 0px #85868b;
	opacity: 0.4;
}
.moon div:nth-child(3) {
	position: absolute;
	top: 60%;
	left: 45%;
	width: 20%;
	height: 20%;
	border-radius: 50%;
	border: 1px solid #adaca2;
	border-radius: 50%;
	box-shadow: inset 2px -1px 0 0px #85868b;
	opacity: 0.4;
}
.moon{
	-webkit-transition: all 2000ms linear;
	transition: all 2000ms linear; 
}
@keyframes brilla-moon{
	0%{
	box-shadow: 
		inset -20px 2px 0 0px #c0c3c9,
        0 0 10px 5px rgba(228,228,222,.4);
	}
	50%{
	box-shadow:
		inset -20px 2px 0 0px #c0c3c9,
        0 0 15px 8px rgba(228,228,222,.4);
	}
}
.shooting-star {
	z-index: 2;
	width: 1px;
	height: 50px;
	border-bottom-left-radius: 50%;
	border-bottom-right-radius: 50%;
	position: absolute;
	top: 0;
	left: -70px;
	background: linear-gradient(to bottom, rgba(255, 255, 255, 0), white);
	animation: animShootingStar 6s linear infinite;
	-webkit-transition: all 2000ms linear;
	transition: all 2000ms linear; 
}
@keyframes animShootingStar {
	from {
		transform: translateY(0px) translateX(0px) rotate(-45deg);
		opacity: 1;
		height: 5px;
	}
	to {
		transform: translateY(1280px) translateX(1280px) rotate(-45deg);
		opacity: 1;
		height: 800px;
	}
}
.shooting-star-2 {
	z-index: 2;
	width: 1px;
	height: 50px;
	border-bottom-left-radius: 50%;
	border-bottom-right-radius: 50%;
	position: absolute;
	top: 0;
	left: 200px;
	background: linear-gradient(to bottom, rgba(255, 255, 255, 0), white);
	animation: animShootingStar-2 9s linear infinite;
	-webkit-transition: all 2000ms linear;
	transition: all 2000ms linear; 
}
@keyframes animShootingStar-2 {
	from {
		transform: translateY(0px) translateX(0px) rotate(-45deg);
		opacity: 1;
		height: 5px;
	}
	to {
		transform: translateY(1920px) translateX(1920px) rotate(-45deg);
		opacity: 1;
		height: 800px;
	}
}
.star {
	z-index: 2;
	position: absolute;
	top: 185px;
	left: 25px;
	background-image: url('https://ivang-design.com//svg-load/air/star.png');
	background-size: 15px 15px;
	width: 15px;
	height: 15px;
	opacity: 0.4;
	animation: starShine 3.5s linear infinite;
	-webkit-transition: all 1200ms linear;
	transition: all 1200ms linear; 
}
.star.snd {
	top: 100px;
	left: 310px;
	animation-delay: 1s;
}
.star.trd {
	top: 130px;
	left: 100px;
	animation-delay: 1.4s;
}
.star.fth {
	top: 20px;
	left: 200px;
	animation-delay: 1.8s;
}
.star.fith {
	top: 85px;
	left: 220px;
	animation-delay: 2.2s;
}
@keyframes starShine {
	0% {
		transform: scale(0.3) rotate(0deg);
		opacity: 0.4;
	}
	25% {
		transform: scale(1) rotate(360deg);
		opacity: 1;
	}
	50% {
		transform: scale(0.3) rotate(720deg);
		opacity: 0.4;
	}
	100% {
		transform: scale(0.3) rotate(0deg);
		opacity: 0.4;
	}
}
.tree-1 {
	position: relative;
	top: 150px;
	left: 50px;
    width: 0;
    height: 0;
	z-index: 8;
	display: block;
    border-bottom: 90px solid #0a171d;
    border-left: 30px solid transparent;
    border-right: 30px solid transparent;
}
.tree-1:before {
	position: absolute;
	bottom: -110px;
	left: 50%;
	margin-left: -4px;
    width: 8px;
	display: block;
    height: 30px;
	z-index: 7;
    content: '';
	background-color: #000;
}
.tree-2 {
	position: relative;
	top: 0;
	left: 250px;
    width: 0;
    height: 0;
	z-index: 8;
	display: block;
    border-bottom: 90px solid #0a171d;
    border-left: 30px solid transparent;
    border-right: 30px solid transparent;
}
.tree-2:before {
	position: absolute;
	bottom: -110px;
	left: 50%;
	margin-left: -4px;
    width: 8px;
	display: block;
    height: 30px;
	z-index: 7;
    content: '';
	background-color: #000;
}
.fire {
	position: absolute;
	z-index: 39;
	width: 2px;
	margin-left: -1px;	
	left: 50%; 
	bottom: 80px;
	-webkit-transition: all 1200ms linear;
	transition: all 1200ms linear; 
}
.fire span { 
	display: block;
	position: absolute;
	bottom: -15px; 
	margin-left:-20px;
	height: 0px; width: 0px;
	border: 30px solid #febd08;
	border-radius: 50%;
	border-top-left-radius: 0;
	left: -9px; 
	box-shadow: 
		0 0 10px 5px rgba(244,110,28,0.8),
		0 0 20px 10px rgba(244,110,28,0.6),
		0 0 30px 15px rgba(244,110,28,0.3);
	transform: scale(0.45, 0.75) rotate(45deg);
	animation: brilla-fire 2.5s alternate infinite;
	z-index: 9;
	-webkit-transition: all 1200ms linear;
	transition: all 1200ms linear; 
}
.fire span:after { 
	display: block;
	position: absolute;
	bottom: -30px; 
	content: '';
	margin-left: -5px;
	height: 30px; 
	width: 12px;
	background-color: rgba(244,110,28,0.7);
	border-radius: 80px;
	border-top-right-radius: 0;
	border-bottom-right-radius: 0;
	box-shadow: 
		0 0 20px 10px rgba(244,110,28,0.7);
	left: -9px; 
	opacity: 0.8;
	transform: rotate(-50deg);
}
.fire span:nth-child(2) { 
	left: -22px; 
	transform: scale(0.3, 0.55) rotate(15deg);
	z-index: 8;
	animation: brilla-fire 1.5s alternate infinite;
}
.fire span:nth-child(3) { 
	left: 4px; 
	transform: scale(0.3, 0.55) rotate(80deg);
	z-index: 8;
	animation: brilla-fire 2s alternate infinite;
}
@keyframes brilla-fire{
	0%, 100%{
	box-shadow: 
		0 0 10px 5px rgba(244,110,28,0.8),
		0 0 20px 10px rgba(244,110,28,0.6),
		0 0 30px 15px rgba(244,110,28,0.3);
	}
	50%{
	box-shadow: 
		0 0 14px 7px rgba(244,110,28,0.8),
		0 0 28px 14px rgba(244,110,28,0.6),
		0 0 42px 21px rgba(244,110,28,0.3);
	}
}
.smoke {
	position: absolute;
	z-index: 40;
	width: 2px;
	margin-left: -1px;	
	left: 50%; 
	bottom: 106px;
	opacity: 0;
	-webkit-transition: all 800ms linear;
	transition: all 800ms linear; 
}
.smoke span { 
	display: block;
	position: absolute;
	bottom: -35px; 
	left: 50%; 
	margin-left:-20px;
	height: 0px; width: 0px;
	border: 30px solid rgba(0, 0, 0, .6);
	border-radius: 22px;
	border-bottom-left-radius: 0;
	border-top-right-radius: 0;
	left: -9px; 
	opacity: 0;
	transform: scale(0.2, 0.2) rotate(-45deg);
}
@keyframes smokeLeft {
	0%   { transform: scale(0.2, 0.2) translate(0, 0) rotate(-45deg) }
	10%  { opacity: 1; transform: scale(0.2, 0.3) translate(0, -5px) rotate(-45deg) }
	60%  { opacity: 0.6; transform: scale(0.3, 0.5) translate(-10px, -80px) rotate(-45deg) }
	100% { opacity: 0; transform: scale(0.4, 0.8) translate(-20px, -120px) rotate(-45deg) }
}
@keyframes smokeRight {
	0%   { transform: scale(0.2, 0.2) translate(0, 0) rotate(-45deg) }
	10%  { opacity: 1; transform: scale(0.2, 0.3) translate(0, -5px) rotate(-45deg) }
	60%  { opacity: 0.6; transform: scale(0.3, 0.5) translate(10px, -80px) rotate(-45deg) }
	100% { opacity: 0; transform: scale(0.4, 0.8) translate(20px, -120px) rotate(-45deg) }
}
.smoke .s-0 { 
	animation: smokeLeft 7s 0s infinite 
}
.smoke .s-1 { 
	animation: smokeRight 7s 0.7s infinite 
}
.smoke .s-2 { 
	animation: smokeLeft 7s 1.4s infinite 
}
.smoke .s-3 { 
	animation: smokeRight 7s 2.1s infinite 
}
.smoke .s-4 { 
	animation: smokeLeft 7s 2.8s infinite 
}
.smoke .s-5 { 
	animation: smokeRight 7s 3.5s infinite 
}
.smoke .s-6 { 
	animation: smokeLeft 7s 4.2s infinite 
}
.smoke .s-7 { 
	animation: smokeRight 7s 4.9s infinite 
}
.smoke .s-8 { 
	animation: smokeLeft 7s 5.6s infinite 
}
.smoke .s-9 { 
	animation: smokeRight 7s 6.3s infinite 
}

/* #Switched
================================================== */

body.fire-off .fire-on{
	opacity: 0;
}
.section-center{
	-webkit-transition: all 500ms linear;
	transition: all 500ms linear; 
}
body.fire-off .section-center{
	box-shadow: 0 0 50px 5px rgba(200,200,200,.2);
}
body.fire-off .smoke{
	opacity: 1;
	transition-delay: 0.8s;
}
body.fire-off .fire span { 
	bottom: -35px;
	left: -9px; 
	transform: scale(0.15, 0.15) rotate(45deg);
}

/* #Link to page
================================================== */

.link-to-portfolio {
	  position: fixed;
    top: 30px;
    right: 30px;
    z-index: 20;
    cursor: pointer;
    width: 40px;
    height: 40px;
    text-align: center;
    border-radius: 3px;
    background-position: center center;
    background-size: cover;
    background-image: url('https://ivang-design.com/ig-logo.jpg');
    box-shadow: 0 0 0 2px rgba(255,255,255,.1);
    transition: opacity .2s, border-radius .2s, box-shadow .2s;
    transition-timing-function: ease-out;
}
.link-to-portfolio:hover {
    opacity: 0.8;
    border-radius: 50%;
    box-shadow: 0 0 0 20px rgba(255,255,255,.1);
}
              
            
!

JS

              
                	$("#switch").on('click', function () {
		if ($("body").hasClass("fire-off")) {
			$("body").removeClass("fire-off");
			$("#switch").removeClass("switched");
		}
		else {
			$("body").addClass("fire-off");
			$("#switch").addClass("switched");

		}
	});
              
            
!
999px

Console