#popup {
width: 100%;
height: 100vh;
background-color: rgba(0,0,0,0.7);
position: fixed;
top: 0;
left: 0;
z-index: 10010;
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
}
#popup .popup_in {
position: relative;  }
#popup a.btnclose {
display: block;
position: absolute; bottom: -35px;
right: 0;
}
@media (max-width:750px) {
.popup_in {
width: 80vw;
}
}