@media only screen and (max-width: 991px) {
    h1 {
        font-size: 48px;
    }

    h2 {
        font-size: 36px;
    }

    .navbar_menu {
        display: none;
    }

    .hamburger_container {
        display: block;
    }

    .product_section_container {
        margin-top: 100px;
    }

    .sidebar {
        float: none;
        width: 100%;
        padding-right: 0px;
    }

    .filter_button {
        width: 150px;
    }

    .main_content {
        float: none;
        width: 100%;
        padding-left: 0px;
    }

    .product_details {
        margin-top: 40px;
    }
}

@media only screen and (max-width: 767px) {
    h1 {
        font-size: 36px;
    }

    h2 {
        font-size: 24px;
    }

    h6 {
        font-size: 12px;
    }

    .red_button a {
        font-size: 12px;
    }

    .product_sorting {
        display: block;
    }

    .product_sorting>li {
        display: block;
        margin-bottom: 15px;
    }

    .pages {
        float: none;
    }

    .showing_results {
        display: block;
        float: none;
        margin-bottom: 15px;
    }

    .product_sorting_container_bottom .product_sorting {
        float: none;
    }

    .product_sorting_container_bottom .pages {
        float: none;
    }

    .product {
        height: 305px;
    }

    .tab_title {
        margin-bottom: 78px;
    }

    .tab_text_block {
        margin-bottom: 113px;
    }
}

@media only screen and (max-width: 575px) {
    .hamburger_menu {
        right: -100%;
        width: 100%;
    }

    .product {
        height: 380px;
    }

    .cr {
        display: block;
        margin-right: 0px;
        font-size: 13px;
    }

    .tab {
        margin-right: 30px;
    }

    .tab span {
        font-size: 14px;
    }

    .tab_title h4 {
        font-size: 20px;
    }

    .review {
        padding-left: 0px;
    }

    .review_date {
        margin-top: 15px;
    }
}

@media only screen and (max-width: 479px) {
    .logo_container a {
        font-size: 18px;
    }

    .hamburger_container {
        margin-left: 25px;
    }

    .hamburger_container i {
        font-size: 16px;
    }

    .hamburger_close {
        top: 14px;
        right: 4px;
    }

    .hamburger_close i {
        font-size: 20px;
    }

    .hamburger_menu_content {
        padding-top: 70px;
    }

    .menu_item {
        border-bottom-color: rgba(181, 174, 196, 0.5);
    }

    .menu_item>span,
    .menu_item>a {
        font-size: 12px;
        line-height: 35px;
        height: 35px;
    }

    .menu_selection li a {
        font-size: 12px;
        line-height: 35px;
        height: 35px;
    }

    .navbar {
        height: 30px;
    }

    .red_button a {
        font-size: 10px;
    }

    .product-item {
        width: 100%;
        height: auto;
    }

    .product {
        height: auto;
    }

    .product_name a {
        font-size: 12px;
    }

    .section_title::after {
        top: calc(100% + 8px);
        height: 3px;
    }

    .review_submit_btn {
        font-size: 12px;
        width: 130px;
        height: 36px;
    }
}