.nivoSlider {
	max-width:514px;
	margin: 0px auto;
}

#slider #slider2{
        height: auto; /* Make sure your images are the same size */
        max-width: 514px; /* Make sure your images are the same size */  
}
.slider-wrapper {
        max-width: 514px; /* Make sure your images are the same size */ 
}