style-website.css

body {
	font-family: 'Open Sans', sans-serif;
	margin: 0;
	padding: 0;
	height: 100%;
	width: 100%;
}

header {
	background: rgb(35, 36, 69);
	width: 100%;
	display: flex;
	justify-content: center;
	border-bottom: 2px solid orangered;
}

.title, .nav-bar {
	display: flex;
}

.title {
	flex: 1;
	padding: 0 0 0 50px;
}

.title > h1:nth-child(1) {
	color: orangered;
}

.title > h1:nth-child(2) {
	padding: 0 0 0 10px;
	color: white;
}

.title > h1:hover {
	cursor: pointer;
}

.navigation {
	flex: 1;
}

.nav-bar {
	margin-top: 30px;
	justify-content: center;
	align-items: center;
	list-style: none;
}

.about {
	padding-right: 50px;
	padding-left: 50px;
}

.nav-bar > li > a {
	outline: none;
	text-decoration: none;
	color: white;
	text-transform: uppercase;
	transition: color 1s;
}

.nav-bar > li > a:hover {
	color: grey;
}

.nav-bar > li > a:active {
	color: orangered;
}

section::before {
	content: '';
	position: absolute;
	background-image: url("bg.jpg");
	background-repeat: no-repeat;
	background-size: cover;
	background-attachment: fixed;
	top: 12%;
	width: 100%;
	height: 50%;
	z-index: -1;
	opacity: 0.4;
}

.text-container {
	padding: 60px 0 0 0;
	text-align: center;
}

.text-container > h1 {
	font-size: 40px;
}

.text-container > p {
	padding: 0 15px 0 15px;
}

aside {
	position: absolute;
	top: 62%;
	background: rgb(35, 36, 69);
	width: 100%;
	height: 10%;
}

.subscription {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	justify-content: center;
	text-align: center;
}

.text > h3 {
	font-size: 20px;
	color: white;
}

.button > input {
	font-family: 'Open Sans', sans-serif;
	height: 35px;
	box-sizing: border-box;
	margin: 15px 0 0 0;
}

.button > .email {
	outline: none;
	padding: 0 0 0 5px;
	width: 40%;
	margin: 0 10px 0 0;
}

.button > .subscribe {
	border: none;
	padding: 0 10px 0 10px;
	background: orangered;
	color: white;
	outline: none;
	cursor: pointer;
	transition: background 1s, color 1s;
}

.button > .subscribe:hover {
	background: white;
	color: black;
}

img {
	height: 100px;
}

.container {
	position: absolute;
	top: 72%;
	background: lightblue;
	width: 100%;
	display: flex;
	padding: 30px 0 30px 0;
	height: 35%;
	text-align: center;
}

.container > div > p {
	font-size: 14px;
}

.css3 {
	border-right: 3px solid orangered;
	border-left: 3px solid orangered;
}

footer {
	position: absolute;
	top: 115%;
	background: orangered;
	width: 100%;
	text-align: center;
	color: white;
}

@media screen and (max-width: 1080px) {

	.container > div > p {
		font-size: 12px;
		padding: 0 10px 0 10px;
	}
}

@media screen and (max-width: 875px) {


	.text-container > h1 {
		padding: 0 10px 0 10px;
	}

	.container {
		flex-direction: column;
		height: 105%;
		width: 100%;
	}

	.container > div {
		padding: 30px 20px 10px 20px;
	}

	.container > .css3 {
		padding: 15px;
		border: none;
		border-top: 3px solid orangered;
		border-bottom: 3px solid orangered;
	}

	footer {
		top: 185%;
	}
}

@media screen and (max-width: 720px) {

	header {
		flex-direction: column;
	}

	.title {
		padding: 0;
		justify-content: center;
	}

	.navigation {
		padding-right: 10px;
	}

	.nav-bar {
		margin-right: 5%;
	}

	section::before {
		height: 70%;
	}

	aside {
		top: 80%;
	}

	.container {
		top: 90%;
	}

	footer {
		top: 202%;
	}
}

@media screen and (max-width: 580px) {

	aside {
		height: 20%;
	}

	.subscription {
		grid-template-columns: 1fr;
		grid-template-rows: repeat(2, 1fr);
	}

	.container {
		top: 100%;
		height: 110%;
	}

	footer {
		top: 218%;
	}
}