.iframe{
    display:none;
}    
.iframe.active{
    display:unset;
}
#modules_header {
    height: 37px;
    background-color: #000;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    width: 100%;
    border: none;
    margin: 0;
    padding: 0;
    overflow: hidden;
    z-index: 999999;
}
.header_btt {
    display: inline-block;
    height: 37px;
    line-height: 37px;
    margin-left: 20px;
    margin-right: 50px;
    font-size: 12px;
    font-family: 'Roboto', sans-serif;
    color: #85B346;
    cursor: pointer;
}
.header_btt.active {
    color: #fff;
}
#header_btt_partnerbetriebe {
    position: absolute;
    right: 0;
}
.dt_phone .header_btt{
    margin-left: 10px;
    margin-right: 15px;  
}