How can I make a div fade out when it is clicked?

So basically I have a button and when the user clicks it, a div fades in. I would like it to fade out when the user clicks anywhere on the div. (the div takes up the entire screen)

Here is what I have so far, it basically just fades in the div when you click the "about" button. I need it to fade out whenever I click anywhere on the screen.

$(function() {
  
  $('#fadeContent').click(function(){
    $('#bodyContent').fadeIn(500);
  });
  
});

body {
  background-color: black;
  font-family: "Source Sans Pro", sans-serif;
  color: #ccc;
  z-index: -100;
  background-color:black;
}

#bodyContent{
  display:none;
  position:absolute;
  top:0;      left;0;
  width:100%; height:100%;
  background:#454545;
  z-index: 100;
}

#home {
    position: absolute;
    width: 16%;
    background-color: transparent;
    border: 2px solid #FFF;
    margin-top: 12%;
    margin-left: 20%;
    height: 3em;
    color: #FFF;
    font-size: 1em;
    cursor: pointer;
    text-transform: uppercase;
    border-radius: 4px;
    animation: fadein 2s;
    -moz-animation: fadein 2s; /* Firefox */
    -webkit-animation: fadein 2s; /* Safari and Chrome */
}

.about {
    position: absolute;
    width: 16%;
    background-color: transparent;
    border: 2px solid #FFF;
    margin-top: 12%;
    margin-left: 37%;
    height: 3em;
    color: #FFF;
    font-size: 1em;
    cursor: pointer;
    text-transform: uppercase;
    border-radius: 4px;
    animation: fadein 2s;
    -moz-animation: fadein 2s; /* Firefox */
    -webkit-animation: fadein 2s; /* Safari and Chrome */
}

#projects {
    position: absolute;
    width: 16%;
    background-color: transparent;
    border: 2px solid #FFF;
    margin-top: 12%;
    margin-left: 54%;
    height: 3em;
    color: #FFF;
    font-size: 1em;
    cursor: pointer;
    text-transform: uppercase;
    border-radius: 4px;
    animation: fadein 2s;
    -moz-animation: fadein 2s; /* Firefox */
    -webkit-animation: fadein 2s; /* Safari and Chrome */
}

#contact {
    position: absolute;
    width: 16%;
    background-color: transparent;
    border: 2px solid #FFF;
    margin-top: 12%;
    margin-left: 71%;
    height: 3em;
    color: #FFF;
    font-size: 1em;
    cursor: pointer;
    text-transform: uppercase;
    border-radius: 4px;
    animation: fadein 2s;
    -moz-animation: fadein 2s; /* Firefox */
    -webkit-animation: fadein 2s; /* Safari and Chrome */
}

#home:hover {
    color: #1dd2e2;
    border: 3px solid #18bdef;
    font-weight: bold;
}

#about:hover {
    color: #1dd2e2;
    border: 3px solid #18bdef;
    font-weight: bold;
}

#projects:hover {
    color: #1dd2e2;
    border: 3px solid #18bdef;
    font-weight: bold;
}

#contact:hover {
    color: #1dd2e2;
    border: 3px solid #18bdef;
    font-weight: bold;
}

@keyframes fadein {
    from {
        opacity:0;
    }
    to {
        opacity:1;
    }
}
@-webkit-keyframes fadein { /* Safari and Chrome */
    from {
        opacity:0;
    }
    to {
        opacity:1;
    }
}

<!DOCTYPE html>

<html>
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    
    <title>Home</title>
    
    <link href="https://fonts.googleapis.com/css?family=Source+Sans+Pro|Play" rel="stylesheet">
    
    <link rel='stylesheet prefetch' href='http://maxcdn.bootstrapcdn.com/font-awesome/4.5.0/css/font-awesome.min.css'>
    <link rel='stylesheet prefetch' href='http://rawgit.com/fralec/elegantShareJS/master/css/elegant.css'>

    <link rel="stylesheet" type="text/css" href="css/style.css">
</head>  
<body>
    
    <button id="home">Home</button>
    <button id="fadeContent" class="about">About</button>
    <button id="projects">Projects</button>
    <button id="contact">Contact</button>
    
      <div id="bodyContent">    
            <h1>Page</h1>
            <p>Content</p>      
      </div>
    
    <script src='http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js'></script>
    <script src='http://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.11.2/jquery-ui.min.js'></script>
    <script type="text/javascript" src="js/elegant.js"></script>
    
    <script type="text/javascript" src="js/transition.js"></script>
    <script type="text/javascript" src="js/index.js"></script>
    <script type="text/javascript" src="js/background.js"></script>
</body>
</html>

Solution

Add a click listener to the body content you just faded in, and then fade it out!

$(function() {
  
  $('#fadeContent').click(function(){
    var bodyContent = $('#bodyContent')
    bodyContent.fadeIn(500);
    bodyContent.click(function() {
      $(this).fadeOut(500);
    })
  });
  
});

body {
  background-color: black;
  font-family: "Source Sans Pro", sans-serif;
  color: #ccc;
  z-index: -100;
  background-color:black;
}

#bodyContent{
  display:none;
  position:absolute;
  top:0;      left;0;
  width:100%; height:100%;
  background:#454545;
  z-index: 100;
}

#home {
    position: absolute;
    width: 16%;
    background-color: transparent;
    border: 2px solid #FFF;
    margin-top: 12%;
    margin-left: 20%;
    height: 3em;
    color: #FFF;
    font-size: 1em;
    cursor: pointer;
    text-transform: uppercase;
    border-radius: 4px;
    animation: fadein 2s;
    -moz-animation: fadein 2s; /* Firefox */
    -webkit-animation: fadein 2s; /* Safari and Chrome */
}

.about {
    position: absolute;
    width: 16%;
    background-color: transparent;
    border: 2px solid #FFF;
    margin-top: 12%;
    margin-left: 37%;
    height: 3em;
    color: #FFF;
    font-size: 1em;
    cursor: pointer;
    text-transform: uppercase;
    border-radius: 4px;
    animation: fadein 2s;
    -moz-animation: fadein 2s; /* Firefox */
    -webkit-animation: fadein 2s; /* Safari and Chrome */
}

#projects {
    position: absolute;
    width: 16%;
    background-color: transparent;
    border: 2px solid #FFF;
    margin-top: 12%;
    margin-left: 54%;
    height: 3em;
    color: #FFF;
    font-size: 1em;
    cursor: pointer;
    text-transform: uppercase;
    border-radius: 4px;
    animation: fadein 2s;
    -moz-animation: fadein 2s; /* Firefox */
    -webkit-animation: fadein 2s; /* Safari and Chrome */
}

#contact {
    position: absolute;
    width: 16%;
    background-color: transparent;
    border: 2px solid #FFF;
    margin-top: 12%;
    margin-left: 71%;
    height: 3em;
    color: #FFF;
    font-size: 1em;
    cursor: pointer;
    text-transform: uppercase;
    border-radius: 4px;
    animation: fadein 2s;
    -moz-animation: fadein 2s; /* Firefox */
    -webkit-animation: fadein 2s; /* Safari and Chrome */
}

#home:hover {
    color: #1dd2e2;
    border: 3px solid #18bdef;
    font-weight: bold;
}

#about:hover {
    color: #1dd2e2;
    border: 3px solid #18bdef;
    font-weight: bold;
}

#projects:hover {
    color: #1dd2e2;
    border: 3px solid #18bdef;
    font-weight: bold;
}

#contact:hover {
    color: #1dd2e2;
    border: 3px solid #18bdef;
    font-weight: bold;
}

@keyframes fadein {
    from {
        opacity:0;
    }
    to {
        opacity:1;
    }
}
@-webkit-keyframes fadein { /* Safari and Chrome */
    from {
        opacity:0;
    }
    to {
        opacity:1;
    }
}

<!DOCTYPE html>

<html>
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    
    <title>Home</title>
    
    <link href="https://fonts.googleapis.com/css?family=Source+Sans+Pro|Play" rel="stylesheet">
    
    <link rel='stylesheet prefetch' href='http://maxcdn.bootstrapcdn.com/font-awesome/4.5.0/css/font-awesome.min.css'>
    <link rel='stylesheet prefetch' href='http://rawgit.com/fralec/elegantShareJS/master/css/elegant.css'>

    <link rel="stylesheet" type="text/css" href="css/style.css">
</head>  
<body>
    
    <button id="home">Home</button>
    <button id="fadeContent" class="about">About</button>
    <button id="projects">Projects</button>
    <button id="contact">Contact</button>
    
      <div id="bodyContent">    
            <h1>Page</h1>
            <p>Content</p>      
      </div>
    
    <script src='http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js'></script>
    <script src='http://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.11.2/jquery-ui.min.js'></script>
    <script type="text/javascript" src="js/elegant.js"></script>
    
    <script type="text/javascript" src="js/transition.js"></script>
    <script type="text/javascript" src="js/index.js"></script>
    <script type="text/javascript" src="js/background.js"></script>
</body>
</html>