:root {
	--colorLightBack: rgb(255, 255, 255);
	--colorDarkBack: rgb(0, 0, 0);
	--colorLink: rgb(191, 54, 49);
	--sizeBorderWidth: 5px;
}

html,
body {
	background: var(--colorDarkBack);
	color: var(--colorLightBack);
	font: 16px/1.2em nimbus-sans, sans-serif;
	margin: 0;
	min-height: 100vh;
}

h1 {
	opacity: 0;
	transform: scale(0);
}

a {
	color: rgb(191, 54, 49);
}

header {
	background-color: var(--colorDarkBack);
	background-image: url(../../img/hdd/hdd.jpg);
	background-position: top center;
	background-repeat: no-repeat;
	background-size: 315px 410px;
	height: 430px;
	position: relative;
	/* width: 100vw; */
}

header#hdd2 {
	background-image: url(../../img/hdd/hdd.jpg);
}

header#hdd1 {
	background-image: url(../../img/hdd/hdd1.jpg);
	background-size: 311px 410px;
}

main {
	margin: 0 auto;
	max-width: 680px;
	padding: 0 20px;
}

iframe {
	border: 0;
	border-bottom: var(--sizeBorderWidth) solid var(--colorLink);
	height: 300px;
	margin: 20px auto;
	width: 100%;
}

#returnLink {
	background: url(../../img/hdd/logo.svg) top center no-repeat;
	background-size: 75px;
	display: block;
	font-size: 12px;
	font-weight: bold;
	line-height: 14px;
	margin: 60px auto;
	padding-top: 80px;
	text-align: center;
	text-decoration: none;
	width: 100px;
}

#returnLink span {
	display: block;
	font-size: 23px;
	padding-bottom: 3px;
}