am using the following code to create popup and when popup appears link in parent window are active
*how do i make the parent page inactive while popup active
CSS
.popup { position: fixed;background: rgba(255,255,255,.6); left: 25%; top: 25%; width: 50%; height: 350px; margin-top: -75px; background-color: #fff; border: 1px solid #ccc; border-radius: 5px;index: 1;}
.popup .close {position: absolute; right: -5px; top: -5px; text-decoration: none; background-color: #c41e1e; color: #fff; line-height: 1; border-radius: 50px; width: 1em; text-align: center; z-index: 3;}
h3 {margin: 0; padding: 5px 10px; background-color:#8AC007;}
.mask {background-color: #000; z-index: 1; position: absolute; width: 100%; height: 100%; opacity: 0.5;}
HTML
<div class="popup">
<h3>Select Your City</h3>
<a href="#" class="close"
onclick="document.querySelectorAll('.popup')[0].style.display = 'none';
document.querySelectorAll('.mask')[0].style.display = 'none';
return false;">×</a>
<p><h4>Major City's</h4>
</p>
</div>
only popup should be active all the other should be inactive