.grid li {
    display: block;
    float: right;
    padding: 0;
    margin-left: 10px;
    margin-right: 10px;
    width: calc(25% - 20px);
    overflow: hidden;
}

@media screen and (max-width: 900px) {
    .news-box h4 {
        font-size: 15px !important;
    }

    .grid li {
        width: calc(33.33333333% - 20px);
    }
}

@media screen and (max-width: 360px) {
    .news-box h4 {
        font-size: 15px !important;
    }

    .grid li {
        padding: 2%;
        width: 96%;
        margin-left: 2%;
        margin-right: 2%;
    }

}