Bootstrap glyphicon/nav bar showing popup window

Question

I'm using a few things from bootstrap in my template, like glyphicon's and a navbar. Which is on my "forum.php". Now when I want to delete a topic, I want a javascript popup to show up which is working just fine. But through that popup I can see bootstraps navbar and glyphicon. How do I fix this?

forum.php

    <table class="overview">
       <tr class="row1">
         <td class="col1">
            <button>
               <span class="glyphicon glyphicon-eye-open">
               </span>
            </button>
        </td>
      </tr>
   </table>

        <button onclick="showDiv()">Delete category</button>

css.css

#popup_container {
width:100%;
height:100%;
opacity:.99;
top:0;
left:0;
display: none;
position:fixed;
background-color:#313131;
overflow:auto
}

#prompt-delete {
position:absolute;
left:50%;
top:17%;
margin-left:-202px;
}

popup.php

<div id="popup_container">
   <div id="prompt-delete">
      <h2> my popup</h2>
      <button onclick="closeDiv()">Close</button>
   </div>
</div>

Javascript.js

function showDiv() {
   document.getElementById('popup_container').style.display = "block";
}

function closeDiv() {
   document.getElementById("popup_container").style.display = "none";
}

When popup is showing, through that div, on the background I see the glypicon of bootstrap without being faded into the background. It shows without opacity. The rest of the page is faded with the opacity defined in the css.

Answer 1

将弹出窗口的z-index更改为1。