* {
	box-sizing: border-box;
	margin: 0; padding: 0;
}

body {
	width: 100%;
	min-height: 100vh;
	font-family: Arial, sans-serif;
	font-weight: 700;
	font-size: 16px;
	color: #fff;
	text-align: center;
	background: linear-gradient(rgb(50,50,50), rgb(25,25,25));
}

a {
	color: #fff;
	text-decoration: none;
}

ul, li {
	list-style: none;
}

.content {
	position: relative;
	margin: 0 auto;
}

#macbook {
	position: absolute;
	top: 50vh; left: 50%;
	width: 75vw; height: calc(75vw * 0.56382979);
	-webkit-transform: translate(-50%,-50%);
	transform: translate(-50%,-50%);
}

#macbook #frame {
	position: absolute;
	width: 100%; height: 100%;
	background: url(../images/macbookpro.svg) no-repeat;
	background-size: cover;
}

#macbook #layout {
	position: absolute;
	z-index: 10;
	top: calc(100% * 0.067); left: calc(100% * 0.147);
	overflow-y: scroll; overflow-x: hidden;
	width: calc(100% * 0.706); height: calc(100% * 0.79101886);
}

#macbook #slide {
	position: relative;
	width: 100%; height: auto;
}

#navigation {
	position: relative;
	width: 70vw;
	padding: 25px 0 0;
	margin: 0 auto;
}

.nav-element {
	position: absolute;
	display: inline-block;
	top: 25px;
	font-size: 0.85em;
	opacity: .5;
	-webkit-transition: .2s ease;
	transition: .2s ease;
}

.nav-element.inactive {
	opacity: .1;
}

.nav-element:not(.inactive):hover {
	opacity: 1;
}

#nav_prev {
	left: 0;
}

#nav_next {
	right: 0;
}

.chevron {
	position: relative;
	display: inline-block;
	width: 35px; height: 35px;
	margin: 0 10px;
	border: 2px solid #fff;
	border-radius: 50%;
	box-shadow: 0 0 0 5px rgba(0,0,0,.2);
}

.chevron::before {
	position: relative;
	content: '';
	display: inline-block;
	border-style: solid;
	border-width: 0.25em 0.25em 0 0;
	border-color: #fff;
	width: 8px; height: 8px;
	margin: 8px;
	left: 2px; top: 2px;
	-webkit-transform: rotate(-45deg);
	transform: rotate(-45deg);
	border-radius: 1px;
}

.chevron-right:before {
	left: -2px;
	-webkit-transform: rotate(45deg);
	transform: rotate(45deg);
}

.chevron-left:before {
	-webkit-transform: rotate(45deg);
	transform: rotate(-135deg);
}

#nav_scroll {
	position: absolute;
	top: 25px; right: 12%;
}

#scroll_info {
	position: relative;
	display: inline-block;
	width: 35px; height: 35px;
	border: 1px solid #fff;
	border-radius: 50px;
	padding: 3px;
	opacity: 0;
	visibility: hidden;
	-webkit-transition: .3s ease;
	transition: .3s ease;
}

#scroll_info.show {
	opacity: 1;
	visibility: visible;
}

@-webkit-keyframes line {
	from { height: 0px }
	to { height: 100px }
}

@keyframes line {
	from { height: 0px }
	to { height: 100px }
}

#scroll_info.show:after {
	content: "";
	position: absolute;
	top: 35px;
	height: 0px;
	width: 1px;
	background: #fff;
	-webkit-animation: line 2s; 
    animation: line 2s;
	-webkit-animation-delay: .2s; 
    animation-delay: .2s; 
    -webkit-animation-timing-function: ease;
    animation-timing-function:ease;
	-webkit-animation-fill-mode: forwards;
	animation-fill-mode: forwards;
}

@-webkit-keyframes scroll-inner {
    0% {margin-top: 30%;}
    50% {margin-top: 60%;}
	100% {margin-top: 30%;}
}
@keyframes scroll-inner {
    0% {margin-top: 30%;}
    50% {margin-top: 60%;}
	100% {margin-top: 30%;}
}

#mouse{
	position:relative;
	margin:0 auto;
	display:block;
	width: 15px;
	height: 25px ;
	border: solid 1px #fff;
	border-radius: 25px;
}

#mouse:before { 
	content: "";
	display:block;
    width: 3px;
    height: 5px;
    background:#fff;
    border-radius:2px;
    margin: 15% auto auto auto;
    -webkit-animation: scroll-inner 2s; 
    animation: scroll-inner 2s;
    -webkit-animation-iteration-count: infinite;
    animation-iteration-count: infinite;
    -webkit-animation-timing-function:ease;
    animation-timing-function:ease
}