body { 
	background-color: #D2FFEE;
	color: #300; 
	font-size: medium; 
	max-width: 640px;
	margin-left: auto; 
	margin-right: auto; 
}

.header-box { background-color: #FFF; }
.content-box { background-color: #B6DDDE;  border: solid 1px #8FCCCD; padding: 10px; margin-top: 5px;}

.gif-2hu { background-image: url(res/rumia.gif); background-repeat: repeat-x; min-height: 64px; background-size: 64px;}
.gif-3hu { background-image: url(res/rin.gif); background-repeat: repeat-x; min-height: 64px; background-size: 40px;}

img { margin-left: auto; margin-right: auto; }
iframe { margin-left: auto; margin-right: auto; border: none; }
.header-box > header { text-align: center; font: bold xx-large arial; color: #800; border: solid 1px #F00; padding: 5px; }

a { color: #36A }