How to hide navbar when when overlay appears
<p>Using code from <a href="http://www.w3schools.com/howto/howto_js_sidenav.asp">W3schools</a> 'Sidenav Overlay' I'm trying to create the same effect in Bootstrap. I have the .navbar-toggle floating left and the navbar-toggle still shows when the overlay moves right. Not sure how to hide the navbar-toggle when the overlay appears. First post, Thanks</p>

<p>CSS</p>

<pre><code> .navbar {
    webkit-box-shadow: 0px 2px 3px rgba(100, 100, 100, 0.49);
    moz-box-shadow:    0px 2px 3px rgba(100, 100, 100, 0.49);
    box-shadow:         0px 2px 3px rgba(100, 100, 100, 0.49);
    background-color: white;
    padding: 5px;
}

.navbar-brand {
    position: absolute;
    width: 100%;
    left: 0;
    top: 5px;
    text-align: center;
    margin: auto;
}
.navbar-toggle {
    z-index:3;
    border: none;
    cursor: pointer;
    float: left;
}

.navbar-toggle a:hover {
    border: none;
    background-color: none;
    cursor: pointer;
}

/* The side navigation menu */
.sidenav {
    height: 100%; /* 100% Full-height */
    width: 0; /* 0 width - change this with JavaScript */
    position: fixed; /* Stay in place */
    z-index: 1; /* Stay on top */
    top: 0;
    left: 0;
    background-color: #111; /* Black*/
    overflow-x: hidden; /* Disable horizontal scroll */
    padding-top: 60px; /* Place content 60px from the top */
    transition: 0.5s; /* 0.5 second transition effect to slide in the sidenav */
}

/* The navigation menu links */
.sidenav a {
    padding: 8px 8px 8px 32px;
    text-decoration: none;
    font-size: 25px;
    color: #818181;
    display: block;
    transition: 0.3s
}

/* When you mouse over the navigation links, change their color */
.sidenav a:hover, .offcanvas a:focus{
    color: #f1f1f1;
}

/* Position and style the close button (top right corner) */
.sidenav .closebtn {
    position: absolute;
    top: 0;
    right: 25px;
    font-size: 36px;
    margin-left: 50px;
}

/* Style page content - use this if you want to push the page content to the right when you open the side navigation */
#main {
    transition: margin-left .5s;
    padding: 20px;
}

/* On smaller screens, where height is less than 450px, change the style of the sidenav (less padding and a smaller font size) */
@media screen and (max-height: 450px) {
    .sidenav {padding-top: 15px;}
    .sidenav a {font-size: 18px;}
}
</code></pre>

<p>HTML</p>

<pre><code>&lt;header&gt;
    &lt;div class="navbar navbar-default navbar-fixed-top" role="navigation" id="slide-nav"&gt;
  &lt;div class="container"&gt;
   &lt;div class="navbar-header"&gt;
    &lt;a class="navbar-toggle" onclick="openNav()"&gt; 
      &lt;span class="sr-only" &gt;Toggle navigation&lt;/span&gt;
      &lt;span class="icon-bar"&gt;&lt;/span&gt;
      &lt;span class="icon-bar"&gt;&lt;/span&gt;
      &lt;span class="icon-bar"&gt;&lt;/span&gt;
     &lt;/a&gt;
    &lt;a class="navbar-brand" href="#"&gt;Test Nav&lt;/a&gt;
    &lt;div id="mySidenav" class="sidenav"&gt;
      &lt;a href="javascript:void(0)" class="closebtn" onclick="closeNav()"&gt;&amp;times;&lt;/a&gt;
      &lt;a href="#"&gt;About&lt;/a&gt;
      &lt;a href="#"&gt;Services&lt;/a&gt;
      &lt;a href="#"&gt;Clients&lt;/a&gt;
      &lt;a href="#"&gt;Contact&lt;/a&gt;
    &lt;/div&gt;
   &lt;/div&gt;
   &lt;/div&gt;
   &lt;/div&gt;
  &lt;/header&gt;
</code></pre>

<p>Javascript</p>

<pre><code>/* Set the width of the side navigation to 250px */
function openNav() {
    document.getElementById("mySidenav").style.width = "250px";
}

/* Set the width of the side navigation to 0 */
function closeNav() {
    document.getElementById("mySidenav").style.width = "0";
}
</code></pre>