.nivoSlider {
position:relative;
width:770px; /* Change this to your images width */
height:265px; /* Change this to your images height */
background:url(images/loading.gif) no-repeat 50% 50%;
}
.nivoSlider img {
position:absolute;
top:0px;
left:0px;
display:none;
}
.nivoSlider a {
border:0;
display:block;
}