.popup{
    position:fixed;
    left:0;
    top:0;
    width:100%;
    height:100%;
    background:rgba(0,0,0,.80);
    display:flex;
    justify-content:center;
    align-items:center;
    z-index:999999;
}

.popup-box{
    background:#fff;
    width:90%;
    max-width:850px;
    padding:10px;
    border-radius:10px;
    text-align:center;
    box-shadow:0 0 30px rgba(0,0,0,.5);
}

.popup img{
    width:100%;
    display:block;
    border-radius:8px;
}

.popup-close{
    display:block;
    width:100%;
    background:#d60000;
    color:#fff;
    padding:14px;
    margin-bottom:10px;
    text-decoration:none;
    font-size:18px;
    font-weight:bold;
    border-radius:6px;
}

.popup-close:hover{
    background:#000;
}

#home:target ~ .popup{
    display:none;
}

@media(max-width:768px){

.popup-box{
    width:96%;
}

.popup-close{
    font-size:16px;
    padding:12px;
}

}