@media screen and (min-width:50px) and (max-width:750px) {
    *{
        border: 1px solid red;
        padding: 0%;
        margin: 0%;
    }
   .content-center,.panel-bottom-south,.adresse-content{
        width: auto;
        display: inline-block;
    } 
    
    .panel-bottom-north,.panel_table,.grid-panel,.content_panel,.content-panel-center,.content-center,.panel-bottom-south{
        width: 100%;
        } 
        .content_panel,.content-panel-center{
            width: 100%;
            padding: 0%;
        }
        .grid_item{
            width: 98%;
        }
        .grid-panel{
            margin: 0%;
        }
        .adresse-content{
            text-align: center;
        } 
        .adresse-content li{
            list-style: none;
        }    
}