 hr {color:sienna;}
 p {margin: 0 auto;}
 body {
backroundimage:url("http://i59.tinypic.com/2ex20k3.png");

.klasa {
 position: absolute;
 left: 50%;
 top: 50%;
 width: 600px;
 height: 100px;
 margin: -100px 0 0 -200px;
}

}
