title: modal popup goes behind the slider
body: <p>I am trying to open a Modal popup for customer details. I also have a slider on the site, however when the modal opens it goes behind the slider, and when I slide the page done it's completely visible.</p>
  <p><a href="https://i.stack.imgur.com/wR1M9.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/wR1M9.png" alt="Here how it looks" /></a></p>
  <p>Html (Html for pop up:) and Css for popup:</p>
  <p>As read that popup should be just before <b> /Body tag </b> so tried but didn't work
  If you need any other info please let me know.</p>
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-css lang-css prettyprint-override"><code>/* Full-width input fields */
  
  input[type=text],
  input[type=password] {
    width: 100%;
    padding: 12px 20px;
    margin: 8px 0;
    display: inline-block;
    border: 1px solid #ccc;
    box-sizing: border-box;
  }
  
  
  /* Set a style for all buttons */
  
  button {
    background-color: #4CAF50;
    color: white;
    padding: 14px 20px;
    margin: 8px 0;
    border: none;
    cursor: pointer;
    width: 100%;
  }
  
  
  /* Extra styles for the cancel button */
  
  .cancelbtn {
    padding: 14px 20px;
    background-color: #f44336;
  }
  
  
  /* Float cancel and signup buttons and add an equal width */
  
  .cancelbtn,
  .signupbtn {
    float: left;
    width: 50%
  }
  
  
  /* Add padding to container elements */
  
  .container {
    padding: 16px;
  }
  
  
  /* The Modal (background) */
  
  .modal {
    display: none;
    /* Hidden by default */
    position: fixed;
    /* Stay in place */
    z-index: 1;
    /* Sit on top */
    left: 0;
    top: 0;
    width: 100%;
    /* Full width */
    height: 100%;
    /* Full height */
    overflow: auto;
    /* Enable scroll if needed */
    background-color: rgb(0, 0, 0);
    /* Fallback color */
    background-color: rgba(0, 0, 0, 0.4);
    /* Black w/ opacity */
    padding-top: 60px;
  }
  
  
  /* Modal Content/Box */
  
  .modal-content {
    background-color: #fefefe;
    margin: 5% auto 15% auto;
    /* 5% from the top, 15% from the bottom and centered */
    border: 1px solid #888;
    width: 80%;
    /* Could be more or less, depending on screen size */
  }
  
  
  /* The Close Button (x) */
  
  .close {
    position: absolute;
    right: 35px;
    top: 15px;
    color: #000;
    font-size: 40px;
    font-weight: bold;
  }
  
  .close:hover,
  .close:focus {
    color: red;
    cursor: pointer;
  }
  
  
  /* Clear floats */
  
  .clearfix::after {
    content: "";
    clear: both;
    display: table;
  }
  
  
  /* Change styles for cancel button and signup button on extra small screens */
  
  @media screen and (max-width: 300px) {
    .cancelbtn,
    .signupbtn {
      width: 100%;
    }
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;div id="id01" class="modal"&gt;
    &lt;span onclick="document.getElementById('id01').style.display='none'" class="close" title="Close Modal"&gt;×&lt;/span&gt;
    &lt;form class="modal-content animate" action="/action_page.php"&gt;
      &lt;div class="container"&gt;
        &lt;label&gt;&lt;b&gt;Email&lt;/b&gt;&lt;/label&gt;
        &lt;input type="text" placeholder="Enter Email" name="email" required&gt;
  
        &lt;label&gt;&lt;b&gt;Password&lt;/b&gt;&lt;/label&gt;
        &lt;input type="password" placeholder="Enter Password" name="psw" required&gt;
  
        &lt;label&gt;&lt;b&gt;Repeat Password&lt;/b&gt;&lt;/label&gt;
        &lt;input type="password" placeholder="Repeat Password" name="psw-repeat" required&gt;
        &lt;input type="checkbox" checked="checked"&gt; Remember me
        &lt;p&gt;By creating an account you agree to our &lt;a href="#"&gt;Terms &amp; Privacy&lt;/a&gt;.&lt;/p&gt;
  
        &lt;div class="clearfix"&gt;
          &lt;button type="button" onclick="document.getElementById('id01').style.display='none'" class="cancelbtn"&gt;Cancel&lt;/button&gt;
          &lt;button type="submit" class="signupbtn"&gt;Sign Up&lt;/button&gt;
        &lt;/div&gt;
      &lt;/div&gt;
    &lt;/form&gt;
  &lt;/div&gt;</code></pre>
  </div>
  </div>
  </p>