p {margin:0px; padding:0px; line-height:100%}
body { height:100%; }
html,body { 
-webkit-text-size-adjust:100%;
background-color: #ffffff;
background-image:url('./images/arriere-plan-conceptland3.jpg');
background-repeat: repeat;
background-attachment: fixed;
background-position: center top;
background-size: cover
}
.cLinkHidden {position:absolute; visibility:hidden; left:0px; top:0px; width:0px; height:0px; overflow:hidden;}
#Page {overflow:hidden;position:relative;width:1024px;height:1725px;;}
#Box50 {
    display: block;
    overflow: hidden;
    position: absolute;
    left: 256px;
    top: 384px;
    width: 743px;
    height: 1222px;
    z-index: 2;
    padding-left: 0px;
    padding-top: 0px;
    padding-right: 0px;
    padding-bottom: 0px;
    background: radial-gradient(circle at bottom left, rgba(180, 210, 255, 0.4), transparent 60%), linear-gradient(160deg, #f8faff, #e6f2ff);
    box-shadow: 0 7px 12px rgba(0, 0, 0, 0.15), inset 0 0 0 0.5px rgba(0, 0, 0, 0.05);
    background-repeat: no-repeat;
    border: 2px solid rgba(0, 102, 255, 0.25);
    
}
#Img1 {
    display: block;
    position: absolute;
    left: 15px;
    top: 500px; /* tu ajustes ici, pas dans Img1Inner */
    width: 711px;
    height: 415px;
    z-index: 9999;
    overflow: visible; /* important si tu veux voir toute l’image */
}

#Img1Inner {
    position: relative; /* plus de position:absolute */
    width: 100%;
    height: auto; /* pour garder les proportions */
    top: 280px; /* plus de décalage */
}
#GSupport {display:block;overflow:hidden;position:absolute;left:-5px;top:-5px;width:0px;height:0px;z-index:4;}
#GSociete {display:block;overflow:hidden;position:absolute;left:-5px;top:-5px;width:0px;height:0px;z-index:5;}
#GBienvenue {display:block;overflow:hidden;position:absolute;left:-5px;top:-5px;width:0px;height:0px;z-index:6;}
#G_Actualites {display:block;overflow:hidden;position:absolute;left:-5px;top:-5px;width:0px;height:0px;z-index:7;}
#GMenu {display:block;overflow:hidden;position:absolute;left:-5px;top:-5px;width:0px;height:0px;z-index:8;}
#GProduit1 {display:block;overflow:hidden;position:absolute;left:-5px;top:-5px;width:0px;height:0px;z-index:9;}
#GProduit2 {display:block;overflow:hidden;position:absolute;left:-5px;top:-5px;width:0px;height:0px;z-index:10;}
#Gbas {display:block;overflow:hidden;position:absolute;left:-5px;top:-5px;width:0px;height:0px;z-index:11;}
#GBanniere {display:block;overflow:hidden;position:absolute;left:-5px;top:-5px;width:0px;height:0px;z-index:12;}
#Sondage {display:block;overflow:hidden;position:absolute;left:-5px;top:-5px;width:0px;height:0px;z-index:13;}
#Box_presentation {display:block;overflow:hidden;position:absolute;left:8px;top:384px;width:200px;height:413px;z-index:0;padding-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;background-repeat:no-repeat;}
#a100 {display:block;overflow:hidden;position:absolute;left:304px;top:1636px;width:145px;height:75px;z-index:15;min-width:145px;}
#a100Inner {position: absolute;width:145px;height:75px;border:0px;border-radius:10px;-webkit-border-radius:10px;-moz-border-radius:10px;}
#Img17 {display:block;overflow:hidden;position:absolute;left:460px;top:1636px;width:126px;height:76px;z-index:16;min-width:126px;}
#Img17Inner {position: absolute;width:126px;height:76px;border:0px;}
#mention_legales {display:block;overflow:hidden;position:absolute;left:860px;top:1636px;width:75px;height:75px;z-index:17;min-width:75px;}
#mention_legalesInner {position: absolute;width:75px;height:75px;border:0px;border-radius:10px;-webkit-border-radius:10px;-moz-border-radius:10px;}
#telephone {display:block;overflow:hidden;position:absolute;left:773px;top:1636px;width:75px;height:75px;z-index:18;min-width:75px;}
#telephoneInner {position: absolute;width:75px;height:75px;border:0px;border-radius:10px;-webkit-border-radius:10px;-moz-border-radius:10px;}
#Demande_devis {display:block;overflow:hidden;position:absolute;left:686px;top:1636px;width:75px;height:75px;z-index:19;min-width:75px;}
#Demande_devisInner {position: absolute;width:75px;height:75px;border:0px;}
#Nous_contacter {display:block;overflow:hidden;position:absolute;left:599px;top:1636px;width:75px;height:75px;z-index:20;min-width:75px;}
#Nous_contacterInner {position: absolute;width:75px;height:75px;border:0px;}
#Ancv {display:block;overflow:hidden;position:absolute;left:58px;top:1636px;width:103px;height:75px;z-index:21;min-width:103px;}
#AncvInner {position: absolute;width:103px;height:75px;border:0px;border-radius:10px;-webkit-border-radius:10px;-moz-border-radius:10px;}
#norme {display:block;overflow:hidden;position:absolute;left:177px;top:1636px;width:116px;height:75px;z-index:22;min-width:116px;}
#normeInner {position: absolute;width:116px;height:75px;border:0px;border-radius:10px;-webkit-border-radius:10px;-moz-border-radius:10px;}
#info_telephone {display:none;overflow:hidden;position:absolute;left:809px;top:1547px;width:156px;height:126px;z-index:23;min-width:156px;}
#info_telephoneInner {position: absolute;width:156px;height:126px;border:0px;border-radius:10px;-webkit-border-radius:10px;-moz-border-radius:10px;}
#info_demande_devis {display:none;overflow:hidden;position:absolute;left:716px;top:1586px;width:145px;height:88px;z-index:24;min-width:145px;}
#info_demande_devisInner {position: absolute;width:145px;height:88px;border:0px;border-radius:10px;-webkit-border-radius:10px;-moz-border-radius:10px;}
#info_norme {display:none;overflow:hidden;position:absolute;left:236px;top:1580px;width:145px;height:100px;z-index:25;min-width:145px;}
#info_normeInner {position: absolute;width:145px;height:100px;border:0px;border-radius:10px;-webkit-border-radius:10px;-moz-border-radius:10px;}
#info_Ancv {display:none;overflow:hidden;position:absolute;left:100px;top:1580px;width:172px;height:115px;z-index:26;min-width:172px;}
#info_AncvInner {position: absolute;width:172px;height:115px;border:0px;border-radius:10px;-webkit-border-radius:10px;-moz-border-radius:10px;}
#hygiene {display:none;overflow:hidden;position:absolute;left:396px;top:1522px;width:144px;height:148px;z-index:27;min-width:144px;}
#hygieneInner {position: absolute;width:144px;height:148px;border:0px;border-radius:10px;-webkit-border-radius:10px;-moz-border-radius:10px;}
#Logo_conceptland {display:block;overflow:hidden;position:absolute;left:32px;top:0px;width:965px;height:280px;z-index:28;}
#Logo_conceptlandGrid {position:absolute;top:0px;left:0px;width:100%;height:280px;}
#Logo_conceptlandGridControls {position:absolute;top:280px;left:0px;width:100%;height:0px;}
#Logo_conceptlandSlide {position:absolute;top:0px;left:0px;width:100%;height:280px;}
#Logo_conceptlandSlideDesc {position:absolute;top:280px;left:0px;width:100%;height:32px;}
#Logo_conceptlandSlideFrise {position:absolute;top:280px;left:0px;width:100%;height:75px;}
#Logo_conceptlandSlideControls {position:absolute;top:0px;left:0px;width:100%;height:24px;display:none;}
#notre_entreprise {display:block;overflow:hidden;position:absolute;left:773px;top:265px;width:143px;height:95px;z-index:29;min-width:143px;}
#notre_entrepriseInner {position: absolute;width:143px;height:95px;border:0px;}
#accueil {display:block;overflow:hidden;position:absolute;left:103px;top:265px;width:68px;height:95px;z-index:30;min-width:68px; z-index:9999;}
#accueilInner {
    position: absolute;
    width: 68px;
    height: 95px;
    border: 0px;
    z-index: 9999;
}
#contact {display:block;overflow:hidden;position:absolute;left:625px;top:265px;width:143px;height:95px;z-index:31;min-width:143px;}
#contactInner {position: absolute;width:143px;height:95px;border:0px;}
#catalogue_off {display:block;overflow:hidden;position:absolute;left:177px;top:265px;width:143px;height:95px;z-index:32;min-width:143px;}
#catalogue_offInner {position: absolute;width:143px;height:95px;border:0px;}
#catalogue_vente {display:block;overflow:hidden;position:absolute;left:326px;top:265px;width:143px;height:95px;z-index:33;min-width:143px;}
#catalogue_venteInner {position: absolute;width:143px;height:95px;border:0px;}
#Img5 {display:block;overflow:hidden;position:absolute;left:476px;top:265px;width:143px;height:95px;z-index:34;min-width:143px;}
#Img5Inner {position: absolute;width:143px;height:95px;border:0px;}