html {
	
	text-size-adjust: 100%;
	
}
*, :before, :after {
	box-sizing: border-box;
}
body {
	font-family: Helvetica,Arial,Sans-Serif;
	font-size: 14px;
	padding: 0;
	margin: 0;
	position: relative;
}

h1 {
	font-weight: 700;
	line-height: 1.5;
}


.big_img {
	width: 100%;
	height: 70rem;
	overflow: hidden;
	position: relative;
}

.big_img img {
	width: 100%;
	position: absolute;
	top: 0;
	left: 50%;
	transform: translate(-50%);
}

div {
	display : block;
}