.class-homepage {
    width: 560px;
}

.bloc.actu {
    box-sizing: border-box;
    width: 100%;
    margin-bottom: 9px;
}

.content-ecommerce {
    padding-top: 27px;
    float: right;
}

div#actualite-slide td div.content,
div#actualite-slide div.navigation {
    width: 532px;
}