.stm_icon_links_style_2 {
    text-align: center;
}

.stm_icon_links_style_2 a {
    background-color: transparent !important;
    font-size: 36px;
    margin: 0 25px;
    text-decoration: none;
}

.stm_icon_links_style_2 a:hover {
    background-color: transparent !important;
}

@media (max-width: 550px) {
    .stm_icon_links_style_2 {
        display: -ms-flexbox;
        display: flex;
        -ms-flex-wrap: wrap;
        flex-wrap: wrap;
    }

    .stm_icon_links_style_2 a {
        -ms-flex: 0 0 25%;
        flex: 0 0 25%;
        margin: 0;
        text-align: center;
    }

    .stm_icon_links_style_2 a:nth-child(5n) {
        margin-top: 25px;
    }

    .stm_icon_links_style_2 a i {
        font-size: 28px;
    }
}