fix loss normalization for ddp training

haoneng.lhn

2023-12-08 acb9a0fec8d8a4dabeedcbb8e08c26f66d7083f0

 web-pages/src/views/home/assets/css/banner.scss

@@ -24,6 +24,12 @@
            transform: scale(.33)
        }
    }
    .hiddenPagination{
        .swiper-pagination{

            display: none;
        }
    }
    .item{
        width: 100%;
        height: 100%;