#popup {
width: 100%;
height: 100%;
position: fixed;
background: rgba(0,0,0,.8);
top: 0;
left: 0;
z-index: 9999;
}

.window {
width: 70%;
height: 550px;
background: #fff;
position: relative;
padding: 2px;
box-shadow: 0 2px 5px rgba(255,255,255,.4);
text-align: center;
margin: 8% auto;
border:3px solid #0cc5ce;
}

.close-button {
width: 20px;
height: 20px;
background: #d40c14;
border-radius: 50%;
border: 3px solid #fff;
display: block;
text-align: center;
color: #fff;
text-decoration: none;
position: absolute;
top: -10px;
right: -10px;
}