在移动设备中查看时，粘性页脚未粘在底部

Question

I am trying to implement sticky footer for a page which has the bootstrap simple sidebar.

In desktop view the footer seems to stick to bottom of the page regardless if the sidebar is collapsed or not. But when viewed on mobile device the footer does not stick to bottom of the page. You can see that happening in the jsfiddle example. If you shrink the size of the result page and toggle the sidebar, footer appears in middle of the page.

Could someone point out why this is happening?

HTML:

<div id="wrapper">

    <!-- Sidebar -->
    <div id="sidebar-wrapper">
        <ul class="sidebar-nav">
            <li class="sidebar-brand">
                <a href="#">
                    Start Bootstrap
                </a>
            </li>
            <li>
                <a href="#">Dashboard</a>
            </li>
            <li>
                <a href="#">Shortcuts</a>
            </li>
            <li>
                <a href="#">Overview</a>
            </li>
            <li>
                <a href="#">Events</a>
            </li>
            <li>
                <a href="#">About</a>
            </li>
            <li>
                <a href="#">Services</a>
            </li>
            <li>
                <a href="#">Contact</a>
            </li>
             <li>
                <a href="#">Dashboard</a>
            </li>
            <li>
                <a href="#">Shortcuts</a>
            </li>
            <li>
                <a href="#">Overview</a>
            </li>
            <li>
                <a href="#">Events</a>
            </li>
            <li>
                <a href="#">About</a>
            </li>
            <li>
                <a href="#">Services</a>
            </li>
            <li>
                <a href="#">Contact</a>
            </li>
        </ul>
    </div>
    <!-- /#sidebar-wrapper -->

    <!-- Page Content -->
    <div id="page-content-wrapper">


        <div class="container-fluid">
            <div class="row">
                <div class="col-lg-12">

                    <h1>Simple Sidebar</h1>
                    <p>This template has a responsive menu toggling system. The menu will appear collapsed on smaller screens, and will appear non-collapsed on larger screens. When toggled using the button below, the menu will appear/disappear. On small screens, the page content will be pushed off canvas.</p>
                    <p>This template has a responsive menu toggling system. The menu will appear collapsed on smaller screens, and will appear non-collapsed on larger screens. When toggled using the button below, the menu will appear/disappear. On small screens, the page content will be pushed off canvas.</p>
                    <p>This template has a responsive menu toggling system. The menu will appear collapsed on smaller screens, and will appear non-collapsed on larger screens. When toggled using the button below, the menu will appear/disappear. On small screens, the page content will be pushed off canvas.</p>
                    <p>This template has a responsive menu toggling system. The menu will appear collapsed on smaller screens, and will appear non-collapsed on larger screens. When toggled using the button below, the menu will appear/disappear. On small screens, the page content will be pushed off canvas.</p>
                    <p>This template has a responsive menu toggling system. The menu will appear collapsed on smaller screens, and will appear non-collapsed on larger screens. When toggled using the button below, the menu will appear/disappear. On small screens, the page content will be pushed off canvas.</p>
                    <p>This template has a responsive menu toggling system. The menu will appear collapsed on smaller screens, and will appear non-collapsed on larger screens. When toggled using the button below, the menu will appear/disappear. On small screens, the page content will be pushed off canvas.</p>
                    <p>This template has a responsive menu toggling system. The menu will appear collapsed on smaller screens, and will appear non-collapsed on larger screens. When toggled using the button below, the menu will appear/disappear. On small screens, the page content will be pushed off canvas.</p>

                    <p>Make sure to keep all page content within the <code>#page-content-wrapper</code>.</p>
                    <a href="#menu-toggle" class="btn btn-default" id="menu-toggle">Toggle Menu</a>
                </div>
            </div>
        </div>
    </div>
    <!-- /#page-content-wrapper -->
<div id="push"></div>
</div>

<!-- /#wrapper -->
<div id="footer">

  <div class="container">
    <p class="muted credit">Example courtesy <a href="http://martinbean.co.uk">Martin Bean</a> and <a href="http://ryanfait.com/sticky-footer/">Ryan Fait</a>.</p>
  </div>
</div>
<!-- Menu Toggle Script -->
<script>
$("#menu-toggle").click(function(e) {
    e.preventDefault();
    $("#wrapper").toggleClass("toggled");
});
</script>

CSS:

@import url('http://twitter.github.com/bootstrap/assets/css/bootstrap.css');
.top-nav {
    height: 50px;
    position: fixed;
    width: inherit;
    z-index: 1029;
    background-color:yellow;
}

#search-page.col-xs-2 {
    width: 20%;
}


#page-content-wrapper {
    width: 100%;
}

/*!
 * Start Bootstrap - Simple Sidebar HTML Template (http://startbootstrap.com)
 * Code licensed under the Apache License v2.0.
 * For details, see http://www.apache.org/licenses/LICENSE-2.0.
 */

/* Toggle Styles */

#wrapper {
    padding-left: 0;
    -webkit-transition: all 0.5s ease;
    -moz-transition: all 0.5s ease;
    -o-transition: all 0.5s ease;
    transition: all 0.5s ease;
    width:70%;
}

#wrapper.toggled {
    padding-left: 250px;
}

#sidebar-wrapper {
    z-index: 1000;
    position: fixed;
    left: 250px;
    width: 0;
    height: 100%;
    margin-left: -250px;
    overflow-y: auto;
    background: #000;
    -webkit-transition: all 0.5s ease;
    -moz-transition: all 0.5s ease;
    -o-transition: all 0.5s ease;
    transition: all 0.5s ease;
}

#wrapper.toggled #sidebar-wrapper {
    width: 250px;
}

#page-content-wrapper {
    width: 100%;
    padding: 15px;
}

#wrapper.toggled #page-content-wrapper {
    position: absolute;
    margin-right: -250px;
}

/* Sidebar Styles */

.sidebar-nav {
    position: absolute;
    top: 0;
    width: 250px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.sidebar-nav li {
    text-indent: 20px;
    line-height: 40px;
}

.sidebar-nav li a {
    display: block;
    text-decoration: none;
    color: #999999;
}

.sidebar-nav li a:hover {
    text-decoration: none;
    color: #fff;
    background: rgba(255,255,255,0.2);
}

.sidebar-nav li a:active,
.sidebar-nav li a:focus {
    text-decoration: none;
}

.sidebar-nav > .sidebar-brand {
    height: 65px;
    font-size: 18px;
    line-height: 60px;
}

.sidebar-nav > .sidebar-brand a {
    color: #999999;
}

.sidebar-nav > .sidebar-brand a:hover {
    color: #fff;
    background: none;
}

@media(min-width:768px) {
    #wrapper {
        padding-left: 250px;
    }

    #wrapper.toggled {
        padding-left: 0;
    }

    #sidebar-wrapper {
        width: 250px;
    }

    #wrapper.toggled #sidebar-wrapper {
        width: 0;
    }

    #page-content-wrapper {
        padding: 20px;
    }

    #wrapper.toggled #page-content-wrapper {
        position: relative;
        margin-right: 0;
    }
}


  /* Set the fixed height of the footer here */
      #push,
      #footer {
        height: 60px;
      }
      #footer {
        background-color: #f5f5f5;
      }

      /* Lastly, apply responsive CSS fixes as necessary */
      @media (max-width: 767px) {
        #footer {
          margin-left: -20px;
          margin-right: -20px;
          padding-left: 20px;
          padding-right: 20px;
        }
      }

.footer {
background-color: #EDEDED;
height: 30em;
z-index: 1050;
}

jQuery version: 1.10.1

http://jsfiddle.net/tgbej11a/

Thanks, Sam

Answer 1

I've updated the CSS to solve the problem in your latest fiddle too

.top-nav {
    height: 50px;
    position: fixed;
    width: inherit;
    z-index: 1029;
    background-color: yellow;
}

#search-page.col-xs-2 {
    width: 20%;
}

#page-content-wrapper {
    width: 100%;
}

/*!
* Start Bootstrap - Simple Sidebar HTML Template (http://startbootstrap.com)
* Code licensed under the Apache License v2.0.
* For details, see http://www.apache.org/licenses/LICENSE-2.0.
*/
/* Toggle Styles */
#wrapper, #footer {
    padding-left: 0;
    -webkit-transition: all 0.5s ease;
    -moz-transition: all 0.5s ease;
    -o-transition: all 0.5s ease;
    transition: all 0.5s ease;
}

#wrapper.toggled, #wrapper.toggled + #footer {
    padding-left: 250px;
}

#sidebar-wrapper {
    z-index: 1000;
    position: fixed;
    left: 250px;
    width: 0;
    height: 100%;
    margin-left: -250px;
    overflow-y: auto;
    background: #000;
    -webkit-transition: all 0.5s ease;
    -moz-transition: all 0.5s ease;
    -o-transition: all 0.5s ease;
    transition: all 0.5s ease;
}

#wrapper.toggled #sidebar-wrapper {
    width: 250px;
}

#page-content-wrapper {
    padding: 15px;
}
    /* Sidebar Styles */
.sidebar-nav {
    position: absolute;
    top: 0;
    width: 250px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.sidebar-nav li {
    text-indent: 20px;
    line-height: 40px;
}

.sidebar-nav li a {
    display: block;
    text-decoration: none;
    color: #999999;
}

.sidebar-nav li a:hover {
    text-decoration: none;
    color: #fff;
    background: rgba(255,255,255,0.2);
}

.sidebar-nav li a:active,
    .sidebar-nav li a:focus {
    text-decoration: none;
}

.sidebar-nav > .sidebar-brand {
    height: 65px;
    font-size: 18px;
    line-height: 60px;
}

.sidebar-nav > .sidebar-brand a {
    color: #999999;
}

.sidebar-nav > .sidebar-brand a:hover {
    color: #fff;
    background: none;
}

@media(min-width:768px) {
    #wrapper, #wrapper + #footer {
        padding-left: 250px;
    }

    #wrapper.toggled, #wrapper.toggled + #footer {
        padding-left: 0;
    }

    #sidebar-wrapper {
        width: 250px;
    }

    #wrapper.toggled #sidebar-wrapper {
        width: 0;
    }

    #page-content-wrapper {
        padding: 20px;
    }

    #wrapper.toggled #page-content-wrapper {
        position: relative;
        margin-right: 0;
    }
}
    /* Set the fixed height of the footer here */
#push {
    height: 60px;
}

#footer {
    background-color: #f5f5f5;
}

#footer .container {
    margin-left: 0;
}
    /* Lastly, apply responsive CSS fixes as necessary */
@media (max-width: 767px) {
    #footer {
        margin-right: -20px;
        padding-right: 20px;
    }
}

.footer {
    background-color: #EDEDED;
    z-index: 1050;
}