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HTML 

              
                <div class="hero">

    <div class="snow">
        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1024 1536" preserveAspectRatio="xMidYMax slice">
		    <g fill="#FFF" fill-opacity=".15" transform="translate(55 42)">
			   <g id="snow-bottom-layer">
				  <ellipse cx="6" cy="1009.5" rx="6" ry="5.5"/>
				  <ellipse cx="138" cy="1110.5" rx="6" ry="5.5"/>
				  <ellipse cx="398" cy="1055.5" rx="6" ry="5.5"/>
				  <ellipse cx="719" cy="1284.5" rx="6" ry="5.5"/>
				  <ellipse cx="760" cy="1155.5" rx="6" ry="5.5"/>
				  <ellipse cx="635" cy="1459.5" rx="6" ry="5.5"/>
				  <ellipse cx="478" cy="1335.5" rx="6" ry="5.5"/>
				  <ellipse cx="322" cy="1414.5" rx="6" ry="5.5"/>
				  <ellipse cx="247" cy="1234.5" rx="6" ry="5.5"/>
				  <ellipse cx="154" cy="1425.5" rx="6" ry="5.5"/>
				  <ellipse cx="731" cy="773.5" rx="6" ry="5.5"/>
				  <ellipse cx="599" cy="874.5" rx="6" ry="5.5"/>
				  <ellipse cx="339" cy="819.5" rx="6" ry="5.5"/>
				  <ellipse cx="239" cy="1004.5" rx="6" ry="5.5"/>
				  <ellipse cx="113" cy="863.5" rx="6" ry="5.5"/>
				  <ellipse cx="102" cy="1223.5" rx="6" ry="5.5"/>
				  <ellipse cx="395" cy="1155.5" rx="6" ry="5.5"/>
				  <ellipse cx="826" cy="943.5" rx="6" ry="5.5"/>
				  <ellipse cx="626" cy="1054.5" rx="6" ry="5.5"/>
				  <ellipse cx="887" cy="1366.5" rx="6" ry="5.5"/>
				  <ellipse cx="6" cy="241.5" rx="6" ry="5.5"/>
				  <ellipse cx="138" cy="342.5" rx="6" ry="5.5"/>
				  <ellipse cx="398" cy="287.5" rx="6" ry="5.5"/>
				  <ellipse cx="719" cy="516.5" rx="6" ry="5.5"/>
				  <ellipse cx="760" cy="387.5" rx="6" ry="5.5"/>
				  <ellipse cx="635" cy="691.5" rx="6" ry="5.5"/>
				  <ellipse cx="478" cy="567.5" rx="6" ry="5.5"/>
				  <ellipse cx="322" cy="646.5" rx="6" ry="5.5"/>
				  <ellipse cx="247" cy="466.5" rx="6" ry="5.5"/>
				  <ellipse cx="154" cy="657.5" rx="6" ry="5.5"/>
				  <ellipse cx="731" cy="5.5" rx="6" ry="5.5"/>
				  <ellipse cx="599" cy="106.5" rx="6" ry="5.5"/>
				  <ellipse cx="339" cy="51.5" rx="6" ry="5.5"/>
				  <ellipse cx="239" cy="236.5" rx="6" ry="5.5"/>
				  <ellipse cx="113" cy="95.5" rx="6" ry="5.5"/>
				  <ellipse cx="102" cy="455.5" rx="6" ry="5.5"/>
				  <ellipse cx="395" cy="387.5" rx="6" ry="5.5"/>
				  <ellipse cx="826" cy="175.5" rx="6" ry="5.5"/>
				  <ellipse cx="626" cy="286.5" rx="6" ry="5.5"/>
				  <ellipse cx="887" cy="598.5" rx="6" ry="5.5"/>
			   </g>
		    </g>
		    <g fill="#FFF" fill-opacity=".3" transform="translate(65 63)">
			   <g id="snow-top-layer">
				  <circle cx="8" cy="776" r="8"/>
				  <circle cx="189" cy="925" r="8"/>
				  <circle cx="548" cy="844" r="8"/>
				  <circle cx="685" cy="1115" r="8"/>
				  <circle cx="858" cy="909" r="8"/>
				  <circle cx="874" cy="1438" r="8" transform="rotate(180 874 1438)"/>
				  <circle cx="657" cy="1256" r="8" transform="rotate(180 657 1256)"/>
				  <circle cx="443" cy="1372" r="8" transform="rotate(180 443 1372)"/>
				  <circle cx="339" cy="1107" r="8" transform="rotate(180 339 1107)"/>
				  <circle cx="24" cy="1305" r="8" transform="rotate(180 24 1305)"/>
				  <circle cx="8" cy="8" r="8"/>
				  <circle cx="189" cy="157" r="8"/>
				  <circle cx="548" cy="76" r="8"/>
				  <circle cx="685" cy="347" r="8"/>
				  <circle cx="858" cy="141" r="8"/>
				  <circle cx="874" cy="670" r="8" transform="rotate(180 874 670)"/>
				  <circle cx="657" cy="488" r="8" transform="rotate(180 657 488)"/>
				  <circle cx="443" cy="604" r="8" transform="rotate(180 443 604)"/>
				  <circle cx="339" cy="339" r="8" transform="rotate(180 339 339)"/>
				  <circle cx="24" cy="537" r="8" transform="rotate(180 24 537)"/>
			   </g>
		    </g>
		</svg>
    </div>
	
	<div class="hero__content">
		<h1>SVG Snow</h1>
	</div>

</div>
!

CSS 

              
                @import url('https://fonts.googleapis.com/css?family=Corben:700');

h1 {
	font-family: 'Corben', cursive;
	font-size: 6rem;
	color: white;
	letter-spacing: 0.1rem;
	text-shadow: 0px 3px 3px rgba(0, 0, 0, 0.66);
}

.hero {
	background-image: radial-gradient(50% 176%, #253854 80%, #061922 100%);
	// min-height: 100vh;
	min-height: 30rem;
	position: relative;
	overflow: hidden;
	display: flex;
	justify-content: center;
	align-content: center;
	
	&__content {
		position: relative;
		align-self: center;
		padding: 3rem 0;
	}
}

.snow {
	position: absolute;
	min-width: 100vw;
	min-height: 100vh;
	height: 100%;
	width: 100%;
	top: 0;
	left: 0;
}

.snow .svg {
	position: absolute;
	width: 100%;
	height: 100%;
}

#snow-top-layer {
	will-change: transform;
	transform: translateY(-768px);
	animation: fall 22.5s infinite linear;
}

#snow-bottom-layer {
	will-change: transform;
	transform: translateY(-768px);
	animation: fall 45s infinite linear;
}

@keyframes fall {
	
	100% {
		transform: translateY(0);
	}
	
}
!

JS
!
999px

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