body {
    font-family: Arial, 'microsoft yahei', Helvetica, sans-serif;
    color: #333;
}

a,
button {
    transition: 0.5s;
    -webkit-transition: 0.5s;
    -moz-transition: 0.5s;
}

ul {
    list-style: none;
}

h2 {
    margin: 0px;
    padding: 0px;
}

.top_menu {
    font-size: 12px;
    color: #7C98A2;
    width: 100%;
    height: 35px;
    background-color: #fff;
    color: #888;
}

.top_lang {
    float: right;
    height: 35px;
    padding: 7px 10px 0px 10px;
}

.top_name {
    display: inline-block;
    padding-top: 10px;
}

.flash img {
    width: 100%
}

.flash ul.bxslider {
    list-style: none;
}

.flash div.bx-pager {
    bottom: 4%;
}

.flash div.bx-controls-direction {
    display: none;
}

.img-thumbnail:hover,
.opacity_img:hover {
    opacity: 0.8;
}


/*导航菜单*/

.navbar {
    margin: 0px;
    background-color: #242a35;
    border: none;
    margin-top: 35px;
}

#app_menudown {
    position: absolute;
    top: 0px;
    right: 0px;
    font-size: 16px;
    height: 40px;
}

#app_menudown:hover {
    background-color: #000;
}


/*产品搜索*/

.search_group {
    margin: 38px 0px 0px 0px;
}

.form-control {
    border-radius: 0px;
    box-shadow: none;
}

.mysearch_btn {
    background-color: #000;
    color: #fff;
    border-radius: 0px;
}

.mysearch_btn:hover,
.mysearch_btn:focus {
    background-color: #ff5722;
    color: #fff;
}

#small_search {
    float: right;
    margin-top: 7px;
    padding: 8px 13px;
    font-size: 17px;
    border-radius: 4px;
    color: #fff;
}

#small_search:hover,
#small_search:focus {
    cursor: pointer;
    background-color: #3477c8;
}


/*首页产品*/

.product_bg {
    padding-bottom: 30px;
}

.product_head h2 {
    font-size: 28px;
    text-align: center;
    color: #434343;
    margin: 0px;
}

.product_head span {
    display: block;
    width: 130px;
    margin: 0 auto;
    border-bottom: 1px solid #000;
    margin-top: 10px;
    position: relative;
    top: 1px;
    z-index: 100;
}

.product_head p {
    text-align: center;
    padding: 8px;
    font-size: 16px;
    color: #B1AFAF;
    border-top: 1px solid #d9d9d9;
    margin-left: 8px;
    margin-right: 8px;
}

.product_index {
    margin: 45px 0px 0px 0px;
}

.product_list {
    clear: both;
    padding: 30px 0px 0px 0px;
    margin-right: -15px;
    margin-left: -15px;
}

.product_list2 {
    padding-top: 30px;
}

.product_img {
    padding-left: 15px;
    padding-right: 15px;
    min-height: 320px;
}

.product_img img {
    margin-right: auto;
    margin-left: auto;
    display: block;
    max-width: 100%;
    height: auto;
    margin-bottom: 10px;
    max-height: 250px;
}

.product_list2 div.product_img {
    min-height: 260px;
}

.product_title {
    text-align: center;
    padding: 0px 15px 0px 0px;
    height: 40px;
}

.product_title a {
    color: #656464;
}

.product_title a:hover {
    text-decoration: none;
    color: #FF6633;
}


/*公司简介*/

.aboutus {
    text-align: center;
    color: #fff;
    padding: 60px 20px 60px 20px;
    background-position: center;
    background-repeat: no-repeat;
}

.aboutus h2 {
    font-size: 30px;
    font-weight: 300;
}

.aboutus p {
    line-height: 26px;
    margin-top: 20px;
}

.view-all {
    margin-top: 20px;
    color: #fff;
    background: transparent;
    border-radius: 0px;
    border: 3px solid #fff;
    transition: background 0.4s;
    padding: 7px 36px;
}

.view-all:hover,
.view-all:focus {
    color: #000;
    background-color: #fff;
    border: 3px solid #fff;
}


/*我们的优势*/

.advantage {
    text-align: center;
    color: #fff;
    padding: 65px 0px 20px 0px;
    background-color: #242a35;
}

.advantage_head h2 {
    font-size: 28px;
    color: #fff;
    margin-bottom: 30px;
}

.advantage_list {
    padding-top: 30px;
}

.advantage_col {
    margin-bottom: 30px;
    text-align: center;
    min-height: 185px;
}

.advantage_col p {
    text-align: center;
    padding-top: 12px;
    margin-top: 15px;
}

.advantage_col p a {
    color: #fff;
    font-size: 16px;
}

.advantage_col p a:hover {
    color: #4caf50;
    text-decoration: none;
}

.advantage_col img {
    -webkit-transition: -webkit-transform 0.8s ease-out;
    -moz-transition: -moz-transform 0.8s ease-out;
    -o-transition: -o-transform 0.8s ease-out;
    -ms-transition: -ms-transform 0.8s ease-out;
}

.advantage_col img:hover {
    -webkit-transform: rotateZ(360deg);
    -moz-transform: rotateZ(360deg);
    -o-transform: rotateZ(360deg);
    -ms-transform: rotateZ(360deg);
    transform: rotateZ(360deg);
}


/*首页新闻*/

.news_bg {
    background-color: #e6e7ea;
}

.news_head h2 {
    font-size: 24px;
    text-align: center;
    color: #434343;
    margin: 40px 0px 0px 0px;
}

.news_head span {
    display: block;
    width: 130px;
    margin: 0 auto;
    border-bottom: 1px solid #000;
    margin-top: 10px;
    position: relative;
    top: 1px;
    z-index: 100;
}

.news_head p {
    text-align: center;
    padding-top: 8px;
    font-size: 18px;
    color: #909090;
    border-top: 1px solid #d9d9d9;
}

.news_index {
    clear: both;
    list-style: none;
    margin: 0px;
    padding: 0px;
    margin-bottom: 25px;
}

.news_index li {
    padding: 25px 0px 45px 0px;
    border-bottom: 1px dashed #bdbdbd;
}

.news_index li span {
    display: inline-block;
    width: 68px;
    height: 68px;
    text-align: center;
    background-color: #242a35;
    color: #fff;
    float: left;
    padding: 0px 2px;
    margin-right: 15px;
}

.news_index li span strong {
    display: block;
    font-size: 25px;
    padding-top: 10px;
}

.news_index li span i {
    display: block;
    font-size: 12px;
    font-style: normal;
    font-family: Arial;
}

.news_index li a {
    color: #333;
    font-size: 18px;
}

.news_index li a:hover {
    text-decoration: none;
    color: #FF6633;
}

.news_index li em {
    font-style: normal;
    display: inline-block;
    line-height: 18px;
    color: #888;
    padding-top: 12px;
    font-size: 13px;
}


/*列表页*/

.list_box {
    clear: both;
    padding: 10px 0px 0px 0px;
}

.page_bg {
    height: 160px;
    margin-top: 96px;
}


/*栏目导航*/

.left_nav {
    clear: both;
    padding-top: 10px;
}

.left_h {
    background: url(../images/title_line.jpg) left bottom no-repeat;
    font-size: 22px;
    display: block;
    margin-top: 25px;
    padding: 0px 0px 10px 0px;
    color: #2C2B2B;
}

.left_nav_ul {
    list-style: none;
    margin: 0px;
    padding: 0px;
    margin: 15px 0px 0px 0px;
}

.left_nav_ul>li {
    position: relative;
    border-bottom: 1px solid #f2f2f2;
    background: url(../images/left_sli.gif) 6px 15px no-repeat;
    padding: 8px 0px 8px 18px;
}

.left_nav_ul>li>a {
    text-decoration: none;
    color: #656464;
}

.left_nav_ul>li>a:hover,
.left_nav_ul li a.left_active {
    color: #FF6633;
}


/*小类*/

ul.left_snav_ul {
    list-style: none;
    padding: 0px;
    display: none;
    padding-top: 8px;
}

ul.left_snav_ul>li {
    margin: 0px;
    padding: 5px 0px 5px 10px;
    background: url(../images/left_sli.gif) 0px 13px no-repeat;
}

ul.left_snav_ul>li>a {
    border: 0;
    color: #797979;
    padding: 5px 0px 5px 0px;
}

ul.left_snav_ul>li>a:hover {
    text-decoration: none;
    color: #FF6633;
}

.menu_head {
    cursor: pointer;
    font: 600 18px/30px "Open Sans", sans-serif;
    width: 35px;
    text-align: center;
    color: #303c4b;
    display: inline-block;
    position: absolute;
    top: 3px;
    right: 0px;
}

.menu_head:hover {
    color: #FF6633;
}


/*左侧新闻*/

.left_news {
    clear: both;
    list-style: none;
    margin: 0px;
    padding: 12px 0px 0px 0px;
}

.left_news li {
    color: #545455;
    border-bottom: 1px dotted #dddddd;
    background: url(../images/li.png) no-repeat left 15px;
    line-height: 21px;
    padding: 10px 0px;
    padding-left: 14px;
}

.left_news li a {
    color: #656464;
    display: inline-block;
}

.left_news li a:hover {
    text-decoration: none;
    color: #FF6633;
}


/*左侧联系*/

.index_contact {
    margin: 30px 0px 35px 0px;
}

.index_contact p,
.index_econtact p {
    clear: both;
}


/*新闻列表*/

.list_news {
    clear: both;
    list-style: none;
    margin: 0px;
    padding: 12px 0px 20px 0px;
}

.list_news li {
    color: #898989;
    background: url(../images/li.png) no-repeat left 18px;
    line-height: 22px;
    padding: 12px 0px;
    padding-left: 13px;
    border-bottom: 1px dashed #e3e2e2;
    /*dotted*/
}

.list_news li a {
    color: #303c4b;
    display: inline-block;
}

.list_news li a:hover {
    text-decoration: none;
    color: #FF6633;
}

.news_time {
    float: right;
}

.contents {
    clear: both;
    padding: 15px 2px 0px 2px;
    line-height: 28px;
    overflow: auto;
}

.contents_title {
    margin: 0px;
    padding: 10px 0px;
    text-align: center;
    color: #000;
    font-size: 18px;
    color: #434343;
    font-weight: bold;
    line-height: 34px;
}


/*分页样式*/

.page {
    clear: both;
    margin: 20px 0px 0px 0px;
    text-align: center;
}

.page a {
    display: inline-block;
    font-family: Arial;
    font-size: 13px;
    border: #dbdbdb 1px solid;
    padding: 4px 9px;
    margin: 2px;
    margin-bottom: 5px;
    color: #31363c;
    text-decoration: none
}

.page a:hover,
.page a:focus {
    font-family: Arial;
    font-size: 13px;
    border: #000 1px solid;
    padding: 4px 9px;
    color: #fff;
    background-color: #31363c;
}

.page .current {
    font-family: Arial;
    border: #000 1px solid;
    font-size: 13px;
    padding: 5px 9px;
    color: #fff;
    margin: 2px;
    background-color: #31363c
}


/*产品展示*/

#pic-page {
    text-align: center;
    margin-top: 10px;
}

#pic-page a {
    margin: 0 2px;
}

#pic-page a img {
    width: 40px;
    padding: 2px;
    border: solid #ccc 1px;
    margin-bottom: 5px;
}

#pic-page a:hover img,
#pic-page a.active img {
    border: solid #5280DD 1px;
}

.showpic_box,
.proinfo_box {
    margin: 30px 0px 20px 0px;
}

.showpic_box div.bx-wrapper img {
    margin: 0 auto;
    max-height: 340px;
}

.product_h1 {
    margin: 0px;
    line-height: 24px;
    font-size: 16px;
    color: #3f51b5;
    padding-bottom: 5px;
    border-bottom: 1px dotted #cccccc;
}

.product_info {
    list-style: none;
    padding: 0px;
    margin-top: 10px;
}

.product_info li {
    line-height: 24px;
    padding-bottom: 12px;
}

.product_con {
    clear: both;
    border-top: 1px dotted #ccc;
    margin: 10px 0px 20px 0px;
    padding: 20px 0px 0px 0px;
    line-height: 26px;
    overflow: auto;
}

.related_h1 {
    padding: 30px 0px 12px 0px;
    color: #303c4b;
    margin: 0px;
    display: block;
    font-weight: 300;
    font-size: 24px;
    border-bottom: 5px solid #f4f5f6;
    font-family: 'Roboto', Arial, Helvetica, sans-serif;
}

.related_list {
    padding-top: 25px;
}

.related_news {
    padding-top: 10px;
    clear: both;
    margin-bottom: 15px;
}

.download_btn {
    text-align: right;
    margin: 10px 10px 20px 0px;
}

.page-btn {
    background-color: #3f51b5;
    border-radius: 0px;
    border: none;
}

.page-btn:hover,
.page-btn:focus {
    background-color: #31363c;
}

.grey-btn {
    border-radius: 0px;
    border: none;
    background-color: #E8E8E8;
}

.grey-btn:hover,
.grey-btn:focus {
    background-color: #ccc;
}

.a2a_default_style {
    display: inline-block;
}


/*在线留言订购*/

.feedback {
    margin-top: 40px;
}

.form-horizontal .form-group {
    margin-right: -10px;
    margin-left: -10px;
}

.codeimg {
    margin: 0px 0px -10px -18px;
}


/*上一个下一个*/

.point {
    clear: both;
    margin: 20px 0px 40px 0px;
    padding-bottom: 40px;
    line-height: 22px;
}

.point span.to_prev {
    text-align: center;
}

.point span.to_prev a {
    color: #0068b7;
    text-decoration: none;
}

.point span.to_prev a:hover {
    color: #FF6633
}

.point span.to_next {
    text-align: center;
}

.point span.to_next a {
    color: #0068b7;
    text-decoration: none;
}

.point span.to_next a:hover {
    color: #FF6633
}


/*标签样式*/

.tags {
    margin: 15px 0px 10px 0px
}

.tags a {
    margin: 0px 5px 8px 0px
}

.tags_list {
    padding: 5px 10px 100px 10px
}

.tags_ul {
    margin-top: 10px;
}

.tags_ul li {
    line-height: 28px;
    margin-bottom: 8px;
    padding-bottom: 10px;
}

.tags_ul h3 {
    font-size: 14px;
    padding: 0px;
    margin: 0px;
    line-height: 20px;
}

.tags_ul p {
    font-size: 13px;
    padding: 0px;
    margin: 0px;
    color: #a0a0a0;
    line-height: 20px;
    padding-top: 8px;
}


/*网站地图*/

ul.ul_sitemap {
    margin: 30px 0px 40px 30px;
}

ul.ul_sitemap li {
    list-style: none;
    line-height: 26px;
    clear: both;
}

ul.ul_sitemap li a {
    color: #7d7d7d;
}

li.small_li_sitemap {
    clear: both;
    padding-left: 12px;
}

li.small_li2_sitemap {
    float: left;
    padding-left: 20px;
}


/*首页Tags*/

.tags_box {
    background-color: #2a313e;
    padding: 11px 0px 9px 0px;
    text-align: center;
    color: #e0e0e0;
    font-size: 13px;
    border-top: 1px solid #242a35;
}

.tags_box a {
    color: #e0e0e0;
    border-right: 1px solid #BBB;
    padding: 0px 8px 0px 8px;
    font-size: 13px;
}

.tags_box a:hover {
    text-decoration: none;
    color: #ffeb3b;
}

.tags_box a:last-child {
    border-right: 0px;
}

.tags_box button {
    display: none;
}

.tags_title {
    font-size: 13px;
    margin-right: -6px;
}

.tags_title a {
    padding: 0px 10px 0px 0px;
}

.tags_title:after {
    content: "：";
}


/*友情链接*/

.link_box {
    background-color: #2a313e;
    padding: 10px 0px;
    text-align: center;
    color: #e0e0e0;
    font-size: 13px;
}

.link_box a {
    color: #e0e0e0;
    border-right: 1px solid #BBB;
    padding: 0px 10px 0px 10px;
    font-size: 13px;
}

.link_box a:hover {
    text-decoration: none;
    color: #ffeb3b;
}

.link_box a:last-child {
    border-right: 0px;
}

.link_box button {
    display: none;
}

.link_title {
    font-size: 13px;
    margin-right: -6px;
}

.link_title:after {
    content: "：";
}

#link_btn:hover,
#link_btn:focus {
    color: #FDFB98;
}


/*底部信息*/

footer {
    text-align: center;
    background-color: #242a35;
    color: #fff;
    padding: 30px 0px 20px 0px;
    font-size: 12px;
}

.copyright {
    line-height: 20px;
}

.copyright a {
    color: #fff;
}

.foot_nav {
    width: 25%;
    float: left;
    background-color: #fafafa;
    text-align: center;
    color: #898989;
    cursor: pointer;
}

.foot_nav:hover,
.foot_nav:focus {
    background-color: #e4e4e4;
    cursor: pointer;
}

.foot_nav a {
    color: #898989;
    display: block;
}

.foot_nav a:hover,
.foot_nav a:focus {
    text-decoration: none;
}

.foot_nav span {
    display: block;
    padding: 3px 0px 0px 0px;
}

.webshare {
    width: 230px;
    padding: 5px;
}

.ewebshare {
    width: 200px;
    padding: 5px;
}


/*大屏幕*/

@media screen and (min-width: 769px) {
    .logo {
        max-height: 86px;
        max-width: 397px;
        margin-top: 16px;
    }
    .flash {
        margin-top: 96px;
    }
    .navbar {
        min-height: 96px;
    }
    .navbar-nav {
        float: right;
    }
    .navbar-nav>li>a {
        text-align: center;
    }
    .navbar-default .navbar-nav>li>a {
        padding: 38px 13px 38px 13px;
        color: #fff;
        text-transform: uppercase;
    }
    .navbar-default .navbar-nav-c>li>a {
        padding-left: 18px;
        padding-right: 18px;
    }
    .navbar-default .navbar-nav>li>a:hover,
    .navbar-default .navbar-nav>li>a:focus,
    .navbar-default .navbar-nav>li>a.active,
    .navbar-default .navbar-nav>.active>a,
    .navbar-default .navbar-nav>.active>a:hover,
    .navbar-default .navbar-nav>.open>a,
    .navbar-default .navbar-nav>.open>a:hover,
    .navbar-default .navbar-nav>.open>a:focus {
        background-color: #000;
        color: #fff;
    }
    .small-nav {
        min-height: 72px;
        margin-top: 0px;
        background-color: rgba(36, 42, 53, 0.8);
    }
    .small-nav .navbar-nav>li>a {
        padding-top: 26px;
        padding-bottom: 26px;
    }
    .small-nav img.logo {
        max-height: 54px;
        margin-top: 9px;
        max-width: 397px;
    }
    .nav_small {
        background-color: rgba(36, 42, 53, 0.8);
        padding: 10px 0px 10px 0px;
        border: none;
        box-shadow: none;
        border-radius: 0px;
        font-size: 13px;
        min-width: 135px;
    }
    .nav_small>li {
        text-align: center;
    }
    .nav_small>li>a {
        line-height: 28px;
        color: #fff;
        padding-left: 28px;
        padding-right: 28px;
    }
    .nav_small>li>a:hover {
        color: #000;
        background-color: #e6e7ea;
    }
    #app_menudown,
    #small_search {
        display: none;
    }
    .index_left_nav,
    .footer_nav {
        display: none;
    }
}


/*小屏幕*/

@media screen and (max-width: 768px) {
    .navbar {}
    .navbar-default .navbar-brand {
        color: #fff;
    }
    .navbar-default .navbar-brand:hover,
    .navbar-default .navbar-brand:focus {
        color: #fff;
    }
    .navbar-toggle {
        border: none;
    }
    .navbar-default .navbar-collapse,
    .navbar-default .navbar-form {
        border: 1px solid #000;
    }
    .navbar-default .navbar-toggle:hover,
    .navbar-default .navbar-toggle:focus {
        background-color: #000;
    }
    .navbar-default .navbar-toggle .icon-bar {
        background-color: #fff;
    }
    .navbar-default .navbar-nav {
        margin-top: 0px;
        margin-bottom: 0px;
    }
    .navbar-default .navbar-nav>li {}
    .navbar-default .navbar-nav>li:last-child {
        border: none;
    }
    .navbar-default .navbar-nav>li>a,
    .navbar-default .navbar-nav .open .dropdown-menu>li>a {
        color: #fff;
    }
    .navbar-default .navbar-nav>li>a:hover,
    .navbar-default .navbar-nav>li>a:focus,
    .navbar-default .navbar-nav>.active>a,
    .navbar-default .navbar-nav>.active>a:hover,
    .navbar-default .navbar-nav>.active>a:focus,
    .navbar-default .navbar-nav>.open>a,
    .navbar-default .navbar-nav>.open>a:hover,
    .navbar-default .navbar-nav>.open>a:focus,
    .navbar-default .navbar-nav .open .dropdown-menu>li>a:hover {
        background-color: #000;
        color: #fff;
    }
    .small-nav {
        margin-top: 0px;
        background-color: rgba(36, 42, 53, 0.8);
    }
    .flash {
        margin-top: 50px;
    }
    .top_name {
        display: none;
    }
    .language {
        padding: 2px 0px 0px 0px;
    }
    .logo {
        margin: 6px 0px 0px 10px;
        max-width: 200px;
        max-height: 38px;
    }
    #topsearch {
        display: none;
    }
    .product_index {
        margin-top: 25px;
    }
    .product_head h2 {
        font-size: 24px;
    }
    .product_list {
        padding-top: 5px;
    }
    .product_img {
        min-height: 80px;
        margin-bottom: 10px;
    }
    .product_list2 div.product_img {
        min-height: 80px;
        margin-bottom: 15px;
    }
    .aboutus {
        padding-top: 40px;
    }
    .aboutus h2 {
        font-size: 28px;
    }
    .news_index li {
        padding: 20px 0px 25px 0px;
    }
    .news_index li span {
        margin-bottom: 5px;
    }
    .news_index li a {
        font-size: 15px;
    }
    .news_index li em {
        display: block;
    }
    .list_box {
        margin-top: 40px;
    }
    .page_bg {
        display: none;
    }
    .list_related h2.left_h {
        margin-top: 60px;
    }
    .product_con img,
    .contents img {
        width: 100%;
    }
    .news_time {
        display: none;
    }
    #pic-page a img {
        width: 35px;
    }
    #cmsFloatPanel {
        display: none;
    }
    .point span.to_prev,
    .point span.to_next {
        text-align: left;
        padding-bottom: 8px;
    }
    .product_list2 {
        padding-top: 25px;
    }
    .related_list {
        padding-top: 25px;
    }
    .feedback {
        margin-top: 20px;
    }
    .link_box {
        padding-left: 7px;
    }
    .link_box a {
        display: block;
        border-right: 0px;
        padding: 4px 0px;
    }
    .link_title {
        display: block;
    }
    .link_title:after {
        content: "";
    }
    .link_box button {
        display: inline-block;
        background-color: transparent;
        border: none;
        float: right;
        margin-top: -20px;
    }
    .link_box button:hover,
    .link_box button:focus {
        color: #99A1C5;
    }
    .link_list {
        display: none;
        padding-top: 7px;
    }
    .tags_box {
        padding-left: 7px;
    }
    .tags_box a {
        display: block;
        border-right: 0px;
        padding: 4px 0px;
    }
    .tags_title {
        display: block;
    }
    .tags_title:after {
        content: "";
    }
    .tags_box button {
        display: inline-block;
        background-color: transparent;
        border: none;
        float: right;
        margin-top: -20px;
    }
    .tags_box button:hover,
    .tags_box button:focus {
        color: #99A1C5;
    }
    .tags_rows {
        display: none;
        padding-top: 7px;
    }
    .footer_nav {
        background-color: #fafafa;
    }
    footer {
        margin-bottom: 50px;
        padding-left: 8px;
        padding-right: 8px;
    }
}

@media screen and (max-width: 767px) {
    .copyright_p {
        display: none;
    }
}


/*320px到768px*/

@media screen and (min-width:320px) and (max-width:768px) {
    .col-mm-1,
    .col-mm-2,
    .col-mm-3,
    .col-mm-4,
    .col-mm-5,
    .col-mm-6,
    .col-mm-7,
    .col-mm-8,
    .col-mm-9,
    .col-mm-10,
    .col-mm-11,
    .col-mm-12 {
        float: left;
    }
    .col-mm-12 {
        width: 100%;
    }
    .col-mm-11 {
        width: 91.66666667%;
    }
    .col-mm-10 {
        width: 83.33333333%;
    }
    .col-mm-9 {
        width: 75%;
    }
    .col-mm-8 {
        width: 66.66666667%;
    }
    .col-mm-7 {
        width: 58.33333333%;
    }
    .col-mm-6 {
        width: 50%;
    }
    .col-mm-5 {
        width: 41.66666667%;
    }
    .col-mm-4 {
        width: 33.33333333%;
    }
    .col-mm-3 {
        width: 25%;
    }
    .col-mm-2 {
        width: 16.66666667%;
    }
    .col-mm-1 {
        width: 8.33333333%;
    }
}

.product_img>a {
    display: block;
    padding-top: 100%;
    position: relative;
}

.product_img a img {
    position: absolute;
    top: 0;
    left: 0;
    height: 99.8%;
    width: 100%;
}