/*responsive css for landing page*/
@media (max-width: 767px) {
  .cms-devenez-partenaire .content p {
      font: italic normal normal 20px/26px LinotypeDidot!important;
  }
  .cms-devenez-partenaire a.btn {
    letter-spacing: 1px !important;
    padding: 10px 17px !important;
    min-width: 150px !important;
    font-size: 15px !important;
    line-height: 24px !important;
  }
  .cms-devenez-partenaire .content {
      width: 90% !important;
  }
  .cms-devenez-partenaire .col-lg-7.col-md-6 {
    text-align:center !important;
  }
  .cms-devenez-partenaire p.sub-text {
   font-size:24px!important;
    line-height: 28px !important;
  }
  .cms-devenez-partenaire p.sub-title {
    font-size: 13px !important;
    line-height: 15px !important;
    letter-spacing: 2px !important;
    margin-bottom: 10px !important;
  }
  .cms-devenez-partenaire h2 {
  font-size: 24px !important;
  line-height: 28px !important;
  text-align: center !important;
  }
  .cms-devenez-partenaire .subscribe-widget__text {
    margin-right:unset !important;
  }
  .cms-devenez-partenaire .discount {
    padding: 35px 0 !important;
  }
  .cms-devenez-partenaire .team {
    padding:unset !important;
  }
  .cms-devenez-partenaire .newsletter-fr {
    padding: 35px !important;
  }
  .cms-devenez-partenaire .footer .container-fluid {
    padding: 35px 0 !important;
  }
  .cms-devenez-partenaire .section-header.text-left {
  text-align:center !important;
  }
  .cms-devenez-partenaire .owl-carousel.team-carousel.owl-loaded.owl-drag {
  margin-bottom: 30px !important;
  }
  span.mobile {
    display:none;
}
.cms-devenez-partenaire .discount {
  padding: 15px 10px !important;
  margin-top: 20px !important;
}
.cms-devenez-partenaire .about {
/*  padding: 20px 0 !important;*/
}
.cms-devenez-partenaire .about-text {
  text-align: center !important;
}
.cms-devenez-partenaire .text-content {
  padding: 0px 40px 0 40px !important;
}
.cms-devenez-partenaire .team .section-header {
    margin-top:30px !important;
}
.cms-devenez-partenaire .blog {
  padding: 30px 0 !important;
}
.cms-devenez-partenaire .testimonial {
  padding: 30px 0 !important;
}
.cms-devenez-partenaire .testimonial .section-header {
    margin-bottom: 30px !important;
}

.cms-devenez-partenaire .footer .footer-info {
 padding:0 30px!important;
}
.cms-devenez-partenaire .footer .footer-menu {
    display: unset !important;
    justify-content: unset !important;
}
.cms-devenez-partenaire .footer .footer-menu p {
    padding: unset !important;
    border-right: unset !important;
}
.cms-devenez-partenaire .footer .copyright {
    margin-top: 10px !important;
    padding: 0 30px !important;
}

/*fr home page mobile responsive*/

.cms-b2b-fr-home-page-fr .content-section p {
    font-size: 24px;
    margin-top: 30px;
}
.cms-b2b-fr-home-page-fr .content-section h2 {
    line-height:28px;
    margin-bottom: 30px!important;
}
.cms-b2b-fr-home-page-fr .text-button {
    margin-top:unset;
    margin-bottom:30px
}
.cms-b2b-fr-home-page-fr p.section-heading {
    margin-top:30px;
    margin-bottom:10px;
    font-size:24px;
    padding: 0 5px 0 5px;
    line-height: 28px;
}
.cms-b2b-fr-home-page-fr .brand-new-slider img {
    width:unset!important;
}
.cms-b2b-fr-home-page-fr .products-grid .product-item-info {
    margin-bottom: unset;
}
.cms-b2b-fr-home-page-fr .block.widget.mgs-products.category-products-grid {
    margin-bottom:30px;
}
.cms-b2b-fr-home-page-fr p.last-section {
    font-size: 5vw !important;
    line-height: 28px;
    padding: 0 35px 0 30px!important;
}
.cms-b2b-fr-home-page-fr .text-image-section .content-section p {
    margin-top:unset!important;
}
.cms-b2b-fr-home-page-fr .text-image-section .col-md-6 {
    padding:unset!important;
}
.cms-b2b-fr-home-page-fr .text-image-section p.section-heading {
    margin-top: 30px!important;
}
.cms-b2b-fr-home-page-fr .footer-container {
    text-align:center!important;
}
.cms-b2b-fr-home-page-fr .subscribe-widget__text {
    margin-right:unset!important;
}
.cms-b2b-fr-home-page-fr .panel-block-row.col-md-12.newsletter-fr {
    padding:35px!important;
}
.cms-b2b-fr-home-page-fr button.smbutton {
    letter-spacing: 1px !important;
    padding: 10px 17px !important;
    min-width: 150px !important;
    font-size: 15px !important;
    line-height: 24px !important;
}
.cms-b2b-fr-home-page-fr .brand-slider1 img {
    width:unset!important;
}
.cms-b2b-fr-home-page-fr .middle-footer {
    padding: 30px 0!important;
}
.cms-b2b-fr-home-page-fr .middle-footer .col-lg-4.col-md-3.col-sm-6.col-xs-12 {
    margin-bottom:30px;
}
.cms-b2b-fr-home-page-fr ul.social-link.margin-top15 {
    margin-top:unset!important;
}
.cms-b2b-fr-home-page-fr .footer .middle-footer p {
    display: none!important;
}
.cms-b2b-fr-home-page-fr .middle-footerul.social-link li:first-child {
    margin-left: 35%!important;
}
.cms-b2b-fr-home-page-fr .footer .middle-footer div[class*="col-lg"]:not(:last-child) {
    margin-bottom: 30px!important;
}
.cms-b2b-fr-home-page-fr .panel-block-row.col-md-12.col-xs-12 {
   margin-left: 10%!important;
}

.cms-b2b-fr-home-page-fr .footer .middle-footer ul.social-link li:first-child {
    margin-left: 35%!important;
}
.header .logo-header .logo img {
    height: 70px!important;
}
.cms-b2b-fr-home-page-fr .slider_mgs_carousel .owl-item .item-image {
    min-height: unset!important;
}
.main-ban-fr button {
    display:none!important;
}
a.scroll-reg {
    display: block !important;
}
.dropdown-backdrop {
    z-index:unset;
}
}
#switcher-language button.switcher-toggle.dropdown-toggle span.store-name {
    letter-spacing: .5px!important;
    color: #000!important;
    font-size: 14px!important;
    line-height: 25px!important;
    text-decoration: none!important;
    font-family: HelveticaNeueLTPro!important;
}
.footer .bottom-footer .copyright address {
   letter-spacing: .45px!important;
    font-size: 17px!important;
    line-height: 20px;
    font-family: HelveticaNeueLTPro!important;
    font-weight: 500;
}
<!-- header CSS start -->
@media (max-width: 767px) {
.cms-b2b-fr-home-page-fr .header .logo-header .logo img {
    height:unset;
}
.cms-b2b-fr-home-page-fr .logo img {
    left:unset;
    top:unset;
}
}
@media (min-width: 1200px) {
.cms-b2b-fr-home-page-fr .middle-header-content .col-lg-2{
   width: 14.666667%; 
}
.cms-b2b-fr-home-page-fr .logo img {
    position: relative;
    height: auto;
    top: 25%;
    left: 40%;
}
.cms-b2b-fr-home-page-fr .header:not(.header6):not(.header7) .navigation .nav-main-menu > li {
    padding: 18px 35px 18px 35px;
    margin: 0px 5px;
    display: inline-block;
}

.cms-b2b-fr-home-page-fr .header:not(.header6):not(.header7) .navigation .nav-main-menu > li > a {
    vertical-align: middle;
    display: inline-block;
    letter-spacing: .5px;
    color: #000;
    font-size: 16px;
    line-height: 25px;
    text-decoration: none!important;
    font-family: HelveticaNeueLTPro;
    position: relative;
}

.cms-b2b-fr-home-page-fr .header:not(.header6):not(.header7) .navigation .nav-main-menu li.mega-menu-fullwidth > ul.dropdown-menu ul li.level1 > a {
    color: #000;
    font-weight: 500;
    text-transform: uppercase;
    display: inline-block;
    font-family: Recoleta;
    font-size: 18px;
    line-height: 22px;
    letter-spacing: 3.5px;
    margin: 0 0 20px 0;
}

.cms-b2b-fr-home-page-fr .header:not(.header6):not(.header7) .navigation .nav-main-menu li.mega-menu-fullwidth > ul.dropdown-menu ul li.level2 > a {
    font-size: 15px;
    line-height: 30px;
    letter-spacing: 0.5px;
    font-family: HelveticaNeueLTPro;
    display: inline-block;
    text-transform: uppercase;
    text-decoration: none!important;
}
}
<!-- Header CSS end -->
<!-- Footer CSS start -->
.cms-b2b-fr-home-page-fr h6.margin-bottom30 strong{
    letter-spacing: .53px;
    font-family: HelveticaNeueLTPro;
    font-size: 19px;
    line-height: 25px;
    font-weight: 400 !important;
    margin-bottom: 15px;
}
.cms-b2b-fr-home-page-fr h6.margin-bottom30 {
    letter-spacing: .53px;
    font-family: HelveticaNeueLTPro;
    font-size: 24px;
    line-height: 25px;
    font-weight: 400;
    margin-bottom: 15px;
}
.cms-b2b-fr-home-page-fr .footer .middle-footer a {
    display: inline-block;
    letter-spacing: .45px;
    color: #000;
    font-size: 17px;
    line-height: 20px;
    text-decoration: none;
    font-family: HelveticaNeueLTPro;
    font-weight: 500;
}
.cms-b2b-fr-home-page-fr ul.list-icon li {
     display: inline-block;
    letter-spacing: .45px;
    color: #000;
    font-size: 16px;
    line-height: 20px;
    text-decoration: none;
    font-family: HelveticaNeueLTPro;
}
h6.margin-bottom30 strong{
    font-weight:400!important;
    
}
.cms-b2b-fr-home-page-fr .product.details.product-item-details {
    text-align:center;
}
<!-- footer CSS end here -->
.header .dropdown-switcher .dropdown-menu li > a {
    letter-spacing: .5px!important;
    color: #000!important;
    font-size: 14px!important;
    line-height: 25px!important;
    text-decoration: none!important;
    font-family: HelveticaNeueLTPro!important;
}
.cms-b2b-fr-home-page-fr #mainMenu li a.level0 {
    font-size:14px;
}
.cms-b2b-fr-home-page-fr button.lgbutton:hover 
{
    background-color: white !important;
    color: black !important;
    border: 1px solid #fff;
}
.cms-b2b-fr-home-page-fr .middle-footer a.popup-link em.fa.fa-edit{
    display:none;
}