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HTML 

              
                <body>
		<div class="big-basin">
			<div class="trees-container">
				<div class="tree-small"> 
					<div class="tree-left"></div>
					<div class="tree-right"></div>
					<div class="stump"></div>
				</div>
				<div class="tree-large"> 
					<div class="tree-left"></div>
					<div class="tree-right"></div>
					<div class="stump"></div>
				</div>
			</div>
			<div class="banner">
				<h1>Big Basin</h1>
			</div>
			<div class="star medium one"></div>
			<div class="star medium two"></div>
			<div class="star medium three"></div>
			<div class="star medium four"></div>
			<div class="star small five"></div>
			<div class="star small six"></div>
			<div class="star small seven"></div>
			<div class="star small eight"></div>
			<div class="star small nine"></div>
			<div class="star small ten"></div>
		</div>
	</body>
!

CSS 

              
                @import url(https://fonts.googleapis.com/css?family=Ubuntu:400,700);

body {
	top: 0;
	left: 0;
	margin: 0;
	background: rgba(182, 161, 122, 0.5);
}

.big-basin {
	position: relative;
	height: 460px;
	width: 320px;
	background: rgba(46, 63, 44, 1);
	border: 20px solid #b6a17a;
	border-radius: 10px 10px 200px 200px;
	margin: 100px auto 0 auto;
}

.trees-container {
	position: absolute;
	background: #334d63;
	height: 300px;
	width: 320px;
	margin-left: 0px;
	overflow: hidden;
}

/* === SMALL TREE === */

.tree-small {
	position: absolute;
	margin: 100px 0 0 60px;
	-webkit-animation: slideup-small 1s;
	-moz-animation: slideup-small 1s;
	animation: slideup-small 1s;
}

.tree-small > .tree-left {
	position: relative;
	width: 0;
	border-bottom: 60px solid rgba(46, 63, 44, 1);
	border-left: 40px solid transparent;
}

.tree-small > .tree-left:before {
	content: "";
	position: absolute;
	width: 0;
	border-bottom: 80px solid rgba(46, 63, 44, 1);
	border-left: 60px solid transparent;
	margin: 30px 0 0 -60px;
}

.tree-small > .tree-left:after {
	content: "";
	position: absolute;
	width: 0;
	border-bottom: 110px solid rgba(46, 63, 44, 1);
	border-left: 70px solid transparent;
	margin: 60px 0 0 -70px;
}

.tree-small > .tree-right {
	position: relative;
	width: 0;
	border-bottom: 60px solid rgba(22, 38, 21, 1);
	border-right: 40px solid transparent;
	margin: -60px 0 0 40px;
}

.tree-small > .tree-right:before {
	content: "";
	position: absolute;
	width: 0;
	border-bottom: 80px solid rgba(22, 38, 21, 1);
	border-right: 60px solid transparent;
	margin: 30px 0 0 0;
}

.tree-small > .tree-right:after {
	content: "";
	position: absolute;
	width: 0;
	border-bottom: 110px solid rgba(22, 38, 21, 1);
	border-right: 70px solid transparent;
	margin: 60px 0 0 0;
}

.tree-small > .stump {
	position: relative;
	background: #433825;
	height: 50px;
	width: 10px;
	margin: 110px 0 0 30px;
}

.tree-small > .stump:after {
	content: "";
	position: absolute;
	background: #322917;
	height: 50px;
	width: 10px;
	margin-left: 10px;
}

/* === LARGE TREE === */

.tree-large {
	position: absolute;
	margin: 70px 0 0 150px;
	-webkit-animation: slideup-large 1.5s;
	-moz-animation: slideup-large 1.5s;
	animation: slideup-large 1.5s;

}

.tree-large > .tree-left {
	position: relative;
	width: 0;
	border-bottom: 80px solid rgba(46, 63, 44, 1);
	border-left: 60px solid transparent;
}

.tree-large > .tree-left:before {
	content: "";
	position: absolute;
	width: 0;
	border-bottom: 100px solid rgba(46, 63, 44, 1);
	border-left: 70px solid transparent;
	margin: 30px 0 0 -70px;
}

.tree-large > .tree-left:after {
	content: "";
	position: absolute;
	width: 0;
	border-bottom: 120px solid rgba(46, 63, 44, 1);
	border-left: 80px solid transparent;
	margin: 70px 0 0 -80px;
}

.tree-large > .tree-right {
	position: relative;
	width: 0;
	border-bottom: 80px solid rgba(22, 38, 21, 1);
	border-right: 60px solid transparent;
	margin: -80px 0 0 60px;
}

.tree-large > .tree-right:before {
	content: "";
	position: absolute;
	width: 0;
	border-bottom: 100px solid rgba(22, 38, 21, 1);
	border-right: 70px solid transparent;
	margin: 30px 0 0 0;
}

.tree-large > .tree-right:after {
	content: "";
	position: absolute;
	width: 0;
	border-bottom: 120px solid rgba(22, 38, 21, 1);
	border-right: 80px solid transparent;
	margin: 70px 0 0 0;
}

.tree-large > .stump {
	position: relative;
	background: #433825;
	height: 80px;
	width: 16px;
	margin: 110px 0 0 44px;
}

.tree-large > .stump:after {
	content: "";
	position: absolute;
	background: #322917;
	height: 80px;
	width: 16px;
	margin-left: 16px;
}

/* === BANNER === */

.banner {
	position: relative;
	margin: 290px 0 0 -10px;
	height: 80px;
	width: 340px;
	background: #b6a17a;
	border-radius: 0 0 20px 20px;
	text-align: center;
}

.banner h1 {
	position: relative;
	top: 14px;
	font-family: 'Ubuntu', Helvetica, sans-serif;
	font-size: 3em;
	font-weight: 700;
	text-transform: uppercase;
	color: #433825;
	-webkit-animation: appear 2s;
	-moz-animation: appear 2s;
	animation: appear 2s;
}

/* === STARS === */

.star {
	position: absolute;
	background: #d8dfe6;
	border-radius: 50%;
	-webkit-animation: glow 1s infinite alternate;
	-moz-animation: glow 1s infinite alternate;
	animation: glow 1s infinite alternate;
}

.small {
	height: 6px;
	width: 6px;	
}

.medium {
	height: 10px;
	width: 10px;
}

.one {
	margin: -280px 0 0 26px;
}

.two {
	margin: -350px 0 0 100px;
}

.three {
	margin: -314px 0 0 170px;
}

.four {
	margin: -340px 0 0 270px;
}

.five {
	margin: -200px 0 0 20px;
}

.six {
	margin: -330px 0 0 40px;
}

.seven {
	margin: -300px 0 0 114px;
}

.eight {
	margin: -348px 0 0 156px;
}

.nine {
	margin: -352px 0 0 220px;
}

.ten {
	margin: -280px 0 0 290px;
}

/* === ANIMATIONS === */

@-webkit-keyframes glow {
	0% {
		-webkit-box-shadow: 0 0 0 0 #fff;
	}
	
	100% {
		-webkit-box-shadow: 0 0 4px 4px #fff;
	}
}

@-moz-keyframes glow {
	0% {
		-moz-box-shadow: 0 0 0 0 #fff;
	}
	
	100% {
		-moz-box-shadow: 0 0 4px 4px #fff;
	}
}

@keyframes glow {
	0% {
		box-shadow: 0 0 0 0 #fff;
	}
	
	100% {
		box-shadow: 0 0 4px 4px #fff;
	}
}

@-webkit-keyframes slideup-small {
	0% {
		margin-top: 400px;
	}
	
	100% {
		margin-top: 100px;
	}
}

@-moz-keyframes slideup-small {
	0% {
		margin-top: 400px;
	}
	
	100% {
		margin-top: 100px;
	}
}

@keyframes slideup-small {
	0% {
		margin-top: 400px;
	}
	
	100% {
		margin-top: 100px;
	}
}

@-webkit-keyframes slideup-large {
	0% {
		margin-top: 370px;
	}
	
	100% {
		margin-top: 70px;
	}
}

@-moz-keyframes slideup-large {
	0% {
		margin-top: 370px;
	}
	
	100% {
		margin-top: 70px;
	}
}

@keyframes slideup-large {
	0% {
		margin-top: 370px;
	}
	
	100% {
		margin-top: 70px;
	}
}


@-webkit-keyframes appear {
	0% {
		opacity: 0;
	}
	
	100% {
		opacity: 1;
	}
}

@-moz-keyframes appear {
	0% {
		opacity: 0;
	}
	
	100% {
		opacity: 1;
	}
}

@keyframes appear {
	0% {
		opacity: 0;
	}
	
	100% {
		opacity: 1;
	}
}
!

JS 

              
                /*
Live version here: http://zcole.me/big-basin.html
*/
!
999px

Console