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HTML

              
                <header class="hero hero--map gps-bg">
	
	<div class="gps-bg__guts">
		<div class="gps-bg__bg"></div>
		<div class="gps-bg__route"></div>
		<div class="gps-bg__marker"></div>
	</div>
	<div class="gps-bg__fade"></div>

	<h1 class="hero__title">
		Animated GPS Map Background
	</h1>
	
</header>
              
            
!

CSS

              
                // Basic Formatting
////////////////////////////////////////////////

$purp: #6c38de;
$lightpurp: #ac8dff;

// Reset
* {
	padding: 0;
	margin: 0;
 	box-sizing: border-box;
 	transition: all 0.25s cubic-bezier(.37,0,.45,.99);
	
 	&:before,
 	&:after {
    	box-sizing: inherit;
	}
	
}

img {
	max-width: 100%;
	height: auto;
}

// Defualt Styling
body {
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Fira Sans", "Helvetica Neue", sans-serif;
	line-height: 1.75;
	background-color: #fafafa;
}

@keyframes driving {
    0% {
        transform: translateY(-650px);
    }

    100% {
        transform: translateY(0);
    }
}

// Demo Styles
// Generic Hero
.hero {
	&__title {
		padding: 3em 2rem 16rem;
		text-align: center;
		color: darken($purp, 50%);
		position: relative;
		z-index: 0001;
	}
}

// GPS Hero
.gps-bg {
	background-color: $lightpurp;
	position: relative;
	perspective: 500px;
	overflow: hidden;
	&:after {
		// Angled bottom
		content: '';
		background-color: #fafafa;
		position: absolute;
		width: 200%;
		height: 5em;
		bottom: 0;
		transform: skewY(-2deg);
	}
	// The nuts and bolts of making this work
	&__guts {
		position: absolute;
		transform: rotateX(45deg);
		width: calc(100% + 1000px); // This makes extra space to overflow the edges with filled map
		height: 100%;
		left: -500px; // Re-centers the container
	}
	&__bg {
		height: 1300px;
		background-image: url(http://www.rastrac.com/hubfs/roads.svg);
		background-position: 50%;
		background-size: 25%;
		position: absolute;
		top: -162px; // Hide the empty top reset by moving the object up
		width: 100%;
		transform: translateY(-650px);
		animation: driving 10000ms linear 0ms infinite;
	}
	&__route {
		width: 2em;
		background-color: #fff;
		position: absolute;
		top: -162px;
		bottom: -162px;
		left: 50%;
		transform: translateX(-50%);
		box-shadow: 0 0 13px 5px rgba(darken($purp, 30%), 0.25);
		&:after {
			content: '';
			width: 60%;
			background-color: $purp;
			position: absolute;
			top: 0;
			bottom: 35%;
			left: 50%;
			transform: translateX(-50%);
		}
	}
	&__fade {
		// The fade at the top helps hide any crimes (it's pretty seamless without it though)
		background-image: linear-gradient( to bottom,  $lightpurp 10%, rgba($lightpurp, 0) 100%);
		position: absolute;
		top: 0;
		left: 0;
		width: 100%;
		height: 60%;
		z-index: 1;
	}
	&__marker {
		height: 6em;
		width: 6em;
		background-color: #fff;
		// 3D lip
		border:{
			right: 1px solid #ddd;
			bottom: 3px solid #ddd;
			left: 1px solid #ddd;
			radius: 100%;
		}
		position: absolute;
		top: 60%;
		left: 50%;
		transform: translateX(-50%);
		box-shadow: 0 0.125em 10px 3px rgba(darken($purp, 30%), 0.25);
		&:after {
			// Arrow
			content: '';
			border-left: 1.5em solid transparent;
			border-right: 1.5em solid transparent;
			border-bottom: 3em solid $purp;
			position: absolute;
			top: 20%;
			left: 50%;
			transform: translateX(-50%);
		}
	}
}
              
            
!

JS

              
                // Notes:

// Use a combination of perspective size and transform rotateX to set street angle (affects whole scene)

// Height of gps-bg__bg should be 2x the absolute value of the translateY distance

// Top of gps-bg__bg should be 25% the absolute value of the translateY distance

// Top and bottom of gps-bg__route should be the same as top of gps-bg__bg
              
            
!
999px

Console