.sys_imageslideshowgallery-control .sys_itemslist 
        {
            margin: 0px;
        }
        .sys_imageslideshowgallery-control .sys_itemslist li
        {
            float: left;
        }        
        .sys_imagegallery_imageloading{
            background-color:#ffffff;
            background-image:url('/aspnet_client/ContensisThemes/Simple/ImageSlideshowGallery/loading.gif');
            background-repeat: no-repeat;
            background-position: center; 
            width:80px;
            height:60px;
        }