#site_logo{
	background-image: url(http://www26.atwiki.jp/puyowords/?cmd=upload&act=open&page=%E3%83%88%E3%83%83%E3%83%97%E3%83%9A%E3%83%BC%E3%82%B8&file=img.png);
}

	#p-logo {
		top: 2em;
		left: 0;
		position: absolute; /*needed to use z-index */
		z-index: 3;
		height: 115px;
		width: 12em;
		overflow: visible;
	}