.popup-overlay{
position:fixed;
inset:0;
background:rgba(0,0,0,.5);
z-index:99999;
}
 
.popup-box{
font-size: 1.5em;
width:500px;
max-width:90%;
margin:120px auto;
background:#fff;
border-radius:10px;
padding:20px;
position:relative;
box-shadow:0 0 20px rgba(0,0,0,.4);
text-align: center;
}
 
.popup-close{
position:absolute;
top:10px;
right:15px;
font-size:28px;
cursor:pointer;
}
 
.popup-button{
font-size: 1em;
padding:10px 20px;
cursor:pointer;
}