html{
	width: 100%;
	height: 100%;
}
body{
	margin: 0;
	font-size: 22px;
	font-weight: 100;
	line-height: 1.7em;
	font-family: Helvetica, Arial, sans-serif;
	letter-spacing: 1px;
	text-align: justify;
}

.cool_background{
	color: #111;
	background-image: -webkit-linear-gradient( hsl(200, 41%, 61%), hsl(322, 20%, 71%) );
	background-image: -moz-linear-gradient( hsl(200, 41%, 61%), hsl(322, 20%, 71%) );
	background-image: -o-linear-gradient( hsl(200, 41%, 61%), hsl(322, 20%, 71%) );
	background-image: linear-gradient( hsl(200, 41%, 61%), hsl(322, 20%, 71%) );
}
.dark_background{
	background: hsl(200, 15%, 12%);
	color: #eee;
}
a{
	color: hsl(322, 84%, 70%);
}
a:hover{
	color: hsl(322, 84%, 80%);
}

#splash{
	width: 100%;
	height: 540px;
	position: relative;
	overflow: hidden;
}
#splash_container{
	position: relative;
	width: 960px;
	height: 500px;
	margin: 0 auto;
}
#splash_image{
	position: absolute;
	background: url(splash.png);
	width: 960px;
	height: 550px;
	background-size: 100% auto;
}
#splash_video{
	width: 480px;
	height: 240px;
	background: #fff;
    position: absolute;
    top: 220px;
    left: 154px;
}
#splash_arrow{
	width: 100%;
	height: 40px;
	overflow: hidden;
	position: relative;
}
#splash_arrow div{
	position: absolute;
}
#splash_arrow div:nth-child(1), #splash_arrow div:nth-child(4){
	width: 50%;
	height: 40px;
	background: hsl(200, 15%, 12%);
}
#splash_arrow div:nth-child(1){
	left:-40px;
}
#splash_arrow div:nth-child(4){
	right:-40px;
}
#splash_arrow div:nth-child(2){
	left: calc(50% - 40px);
	width: 0;
	height: 0;
	border-style: solid;
	border-width: 40px 0 0 40px;
	border-color: transparent transparent transparent hsl(200, 15%, 12%);
}
#splash_arrow div:nth-child(3){
	right: calc(50% - 40px);
	width: 0;
	height: 0;
	border-style: solid;
	border-width: 0 0 40px 40px;
	border-color: transparent transparent hsl(200, 15%, 12%) transparent;
}
/*
#splash_arrow div{
	margin: 0 auto;
    width: 0;
    height: 0;
    border-left: 40px solid transparent;
    border-right: 40px solid transparent;
    border-top: 40px solid hsl(322, 20%, 71%);
}
*/

#description{
	width: 100%;
	overflow: hidden;
}
#description_prologue{
	width: 720px;
	margin: 20px auto 50px auto;
	overflow: hidden;
}
#description_content{
	width: 960px;
	margin: 30px auto 20px auto;
	overflow: hidden;
}
#description_content > div{
	float: left;
	width: 460px;
	height: 260px;
	margin-bottom: 20px;
}
#description_content > div:nth-child(2n){
	margin-left: 40px;
}
.desc_mov{
	/*background: rgba(255,255,255,0.2);*/
}
.desc_info {
	font-size: 0.85em;
	line-height: 1.7em;
}
.desc_info b{
	display: block;
	font-size: 2em;
	line-height: 1em;
	margin-bottom: 0.4em;
}

#examples{	
	overflow: hidden;
}
#examples_title{
	font-size: 1.08em;
	width: 800px;
	margin: 50px auto 30px auto;
}
#examples_blocks{
	width: 800px;
	height: 250px;
	margin: 0 auto;
}
#examples_blocks div{
	width: 250px;
	height: 245px;
	float: left;
}
.example_button{

	border-radius: 25px;
	border-bottom: 5px solid rgba(0,0,0,0.2); 
	position: relative;
	top:0;
	transition: top 0.2s ease-in-out, box-shadow 0.2s ease-in-out;

	box-shadow: 0px 10px 20px 0px rgba(0,0,0,0.5);

	-webkit-user-select: none;
	-moz-user-select: none;
	-ms-user-select: none;
	user-select: none; 

}
.example_button:hover{
	top:-10px;
	box-shadow: 0px 20px 30px 0px rgba(0,0,0,0.25);
}
#examples_blocks div#demo_turtle_thumb{
	background: url(demo_turtle.png);
}
#examples_blocks div#demo_music_thumb{
	background: url(demo_music.png);
}
#examples_blocks div#demo_nonlinear_thumb{
	background: url(demo_nonlinear.png);
}
#examples_blocks div span{
	display: block;
    text-align: center;
    font-weight: bold;
    color: #000;
    font-size: 30px;
    line-height: 1em;
    width: 250px;
    left: 0;
    top: 97px;
    position: relative;
}
#examples_blocks a:nth-child(n+2) > div{
	margin-left: 25px;
}
#examples_getting_started{
	width: 640px;
	margin: 30px auto 50px auto;
	font-size: 1em;
}
#examples_getting_started div{
    width: 500px;
    height: 60px;
    background: hsl(322, 84%, 70%);
    color: #fff;
    font-weight: bolder;
    border-radius: 10px;
    margin: 0.5em auto 0 auto;
    text-align: center;
    font-size: 30px;
    line-height: 60px;
}

#credits{
	overflow: hidden;
}
#credits_content{
	width: 640px;
	margin: 50px auto;
}

#social{
	background:#111;
	padding: 30px 0;
	color: #888;
	text-align: center;
}

ul.share-buttons{
	list-style: none;
	padding: 0;
	display: inline-block;
	position: relative;
	top: 4px;
}
ul.share-buttons li{
	display: inline;
	transition: opacity 0.2s ease-in-out;
	opacity: 0.7;
}
ul.share-buttons li:hover{
	opacity: 1.0;
}
ul.share-buttons li img{
	width: 20px;
}