.section_34100 #main_header {
            background:url(/img/articles_l_sections/1525094724.slides.pique.nique.jpg) 50% 75px no-repeat #eaeaea; 
            min-height: 435px;
        }
        @media screen and (max-width: 800px) {
            .section_34100 #main_header { 
                min-height: 180px;
                background: none;
            }
        }
        @media screen and (max-width: 600px) {
            .section_34100 #main_header { min-height: 135px;}
        }
        @media screen and (max-width: 400px) {
            .section_34100 #main_header { min-height: 75px;}
        }
.section_34200 #main_header {
            background:url(/img/articles_l_sections/1525094800.slides.lentillesetgraines.jpg) 50% 75px no-repeat #eaeaea; 
            min-height: 435px;
        }
        @media screen and (max-width: 800px) {
            .section_34200 #main_header { 
                min-height: 180px;
                background: none;
            }
        }
        @media screen and (max-width: 600px) {
            .section_34200 #main_header { min-height: 135px;}
        }
        @media screen and (max-width: 400px) {
            .section_34200 #main_header { min-height: 75px;}
        }
.section_34400 #main_header {
            background:url(/img/articles_l_sections/1525094675.slide.devenirclient.jpg) 50% 75px no-repeat #eaeaea; 
            min-height: 435px;
        }
        @media screen and (max-width: 800px) {
            .section_34400 #main_header { 
                min-height: 180px;
                background: none;
            }
        }
        @media screen and (max-width: 600px) {
            .section_34400 #main_header { min-height: 135px;}
        }
        @media screen and (max-width: 400px) {
            .section_34400 #main_header { min-height: 75px;}
        }
