.watermark{
	opacity:0.4;
	width:100%;
	/*filter:alpha(opacity=40); /* For IE8 and earlier */
}

.wm_contenedor { 
	position: fixed;
	top: 40px;
	left: 40px;
}

.wm_outer-centrado { 
	float:right; 
	right:50%; 
} 

.wm_inner-centrado { 
	float:left; 
	right:-50%; 
}

.clear { clear:both; }