app.css

@import url("http://fonts.googleapis.com/css?family=Roboto:100,300,100italic,300italic");

body {
    padding: 0;
    margin: 0;
    border: 0;
    font-size: 100%;
    font-family: "roboto";
    vertical-align: baseline;
    background-attachment: fixed;
    background-color: #272833;
    background-position: center center;
    background-size: cover;
	box-shadow: 0 0.25em 0.5em 0 rgba(0, 0, 0, 0.25);
	position: relative;
	min-height: 100vh;
    background-image: url(pictures/banner.jpg);
    display: block;
    z-index: 10;
}

.header {
	display: block;
}
.section {
    display: none;
    width: 98%;
    height: 98%;
    margin-left: auto;
    margin-right: auto;
    border: 2px;
    border-style: groove;
    border-color: #d9d9d9;
    font: inherit;
    font-size: 100%;
    font-color: white;
    vertical-align: baseline;
    background: rgba(39, 40, 51, 0.965);
	box-shadow: 0 0 0.25em 0 rgba(0, 0, 0, 0.25);
	position: relative;
	z-index: 2;
	
}

.section.active {
    display: block;
    z-index: 1;
    
}
h1 {
	color: white;
	display: block;
	margin-top: 10px !important;
}
p,h4 {
	color: white;
	display: block;
}

img {
	display: block;
	margin-left: auto;
	margin-right: auto;
	margin-top: 20%;
	max-height: 50vh;
	max-width: 50vh;
	min-width: 50vh;
	max-width: 50vh;
}

@media screen and (orientation:portrait) {
	img {
		display: block;
		margin-left: auto;
		margin-right: auto;
		margin-top: 20%;
		max-height: 50vh;
		max-width: 50vh;
		min-width: 50vh;
	}
}

@media screen and (orientation:landscape) {
	img {
		border-radius: 5%;
		display: inline-block;
		margin-right: auto;
		margin-left: auto;
		max-height: 50vh;
		max-width: 50vh;
		min-width: 50vh;
		margin-top: inherit;
	}

	.section {
		width: 98%;
		display: none;
	}

	.section.active img{
		padding:
	}

	.container {
		margin-top: 0;
		margin-left: auto;
		margin-right: auto;
		min-height: 75vh;
		max-height: 90vh;
		text-align: center;
		padding: 0 !important;
	}
:-webkit-any(article,aside,nav,section) h1 {
    font-size: 1.5em;
    -webkit-margin-before: 0;
    -webkit-margin-after: 0;
}



}
.add-picture-url {
display: block;
	margin-left: auto;
	margin-right: auto;
}

.add-picture-button {
	display: block;
	margin-left: auto;
	margin-right: auto;
}

nav {
	display: block;
	color: white;
	position: relative;
	margin-left: 1%;
	padding: 0;
	border: 0;
	min-height: 10vh;
	max-height: 15vh;
}

nav:after {
    content: ' ';
    height: 0;
    display: block;
    visibility: none;
    clear: both;
    position: inherit;
}

nav button {
    background: rgba(39, 40, 51, 0.965);
		box-shadow: 0 0 0.25em 0 rgba(0, 0, 0, 0.25);
    height: 40px;
    float: left;
    width: 33%;
    color: inherit;
    position: inherit;
    font: inherit;
}

*, *:before, *:after {
		-moz-box-sizing: border-box;
		-webkit-box-sizing: border-box;
		box-sizing: border-box;
	}

	.container {
		margin-left: auto;
		margin-right: auto;
		min-height: 75vh;
		max-height: 90vh;
	}

	.container.\31 25\25 {
		width: 100%;
		max-width: 87.5em;
		min-width: 70em;
	}

	.container.\37 5\25 {
		width: 52.5em;
	}

	.container.\35 0\25 {
		width: 35em;
	}

	.container.\32 5\25 {
		width: 17.5em;
	}

	.container {
		width: 70em;
	}

	@media screen and (max-width: 1680px) {

		.container.\31 25\25 {
			width: 100%;
			max-width: 87.5em;
			min-width: 70em;
		}

		.container.\37 5\25 {
			width: 52.5em;
		}

		.container.\35 0\25 {
			width: 35em;
		}

		.container.\32 5\25 {
			width: 17.5em;
		}

		.container {
			width: 70em;
		}

	}

	@media screen and (max-width: 1280px) {

		.container.\31 25\25 {
			width: 100%;
			max-width: 112.5%;
			min-width: 90%;
		}

		.container.\37 5\25 {
			width: 67.5%;
		}

		.container.\35 0\25 {
			width: 45%;
		}

		.container.\32 5\25 {
			width: 22.5%;
		}

		.container {
			width: 90%;
		}

	}

	@media screen and (max-width: 980px) {

		.container.\31 25\25 {
			width: 100%;
			max-width: 125%;
			min-width: 100%;
		}

		.container.\37 5\25 {
			width: 75%;
		}

		.container.\35 0\25 {
			width: 50%;
		}

		.container.\32 5\25 {
			width: 25%;
		}

		.container {
			width: 100% !important;
		}

	}

	@media screen and (max-width: 736px) {

		.container.\31 25\25 {
			width: 100%;
			max-width: 125%;
			min-width: 100%;
		}

		.container.\37 5\25 {
			width: 75%;
		}

		.container.\35 0\25 {
			width: 50%;
		}

		.container.\32 5\25 {
			width: 25%;
		}

		.container {
			width: 100% !important;
		}

	}

	@media screen and (max-width: 480px) {

		.container.\31 25\25 {
			width: 100%;
			max-width: 125%;
			min-width: 100%;
		}

		.container.\37 5\25 {
			width: 75%;
		}

		.container.\35 0\25 {
			width: 50%;
		}

		.container.\32 5\25 {
			width: 25%;
		}

		.container {
			width: 100% !important;
		}

	}