.my-news-bottom {
    display: flex;
}

.p-side-right.list-side-bar-minibanner {
    position: relative;
    float: unset;
    flex: 1;
}

.my-news-bottom .p-side-left {
    width: 70.2%;
    float: none;
}

@media(max-width:1023px) {
    .my-news-bottom {
        display: block;
    }

    .p-side-right.list-side-bar-minibanner {
        position: relative;
        float: unset;
        flex: 1;
    }

    .my-news-bottom .p-side-left {
        width: 100%;
        float: none;
    }
}