body {
background: url('image/background.png') 0 0 no-repeat;
background-size: 100%;
text-align: center;
}
article, aside, details, figcaption, figure, footer,header, hgroup, menu, nav, section { 
   display: block; 
}

img {
max-width:100%; 
height: auto;
}

header {
width: 30%;
margin: 0.5% auto;
}

h1 {
text-transform: Uppercase;
color: #900;
margin: 5px;
}
p{
margin: 8px 0;
}

@media screen and (min-width: 1280px) and (max-width: 1440px)  {
	body {
	background: url('image/background144.png') 0 0 no-repeat;
	}
}
@media screen and (min-width: 1440px) and (max-width: 1600px)  {
	body {
	background: url('image/background160.png') 0 0 no-repeat;
	}
}
@media screen and (min-width: 1600px) and (max-width: 1920px)  {
	body {
	background: url('image/background192.png') 0 0 no-repeat;
	font-size: 1.2rem;
	}
	
	header {
	margin: 2% auto;
	}
	h1 {
	margin: 1%;
	}
	p{
	margin: 1%;
	}
}