.cb-slideshow,
.cb-slideshow:after {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0px;
    left: 0px;
    z-index: 0;
}
.cb-slideshow {
    content: '';
    background: transparent url(../images/pattern.png) repeat top left;
}
.texto{
	position: fixed;
    width: 30%;
    height: 30%;
    top: 0px;
    left: 0px;
    z-index: 99;
	background-color: black;
	opacity: 50%;
	color: azure;
}