单击 div 时如何使它淡出？

Question

所以基本上我有一个按钮，当用户单击它时，div 淡入。我希望它在用户单击 div 上的任意位置时淡出。（div 占据了整个屏幕）

这是我目前所拥有的，当您单击 "about" 按钮时，它基本上只是在 div 中淡出。每当我点击屏幕上的任何地方时，我都需要它淡出。

$(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>

Answer 1

为您刚刚淡入的正文内容添加点击侦听器，然后淡出！

$(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>

Answer 2

只需在调用 fadeIn 时将 fadeOut 连接到点击事件即可。

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

编辑

上面的代码将在您每次单击按钮时保持连接事件处理程序。假设您的所有按钮都将加载并显示内容，并且单击内容应始终 return 以考虑按钮；

var $content = $('#bodyContent');
$('body').on('click','button', function() {
    $content.fadeIn(500);
});
$content.on('click', function() {
   $content.fadeOut(500);
});

然后您可以为各个按钮附加点击事件以检索特定内容并将其分配到 #bodyContent，而无需挂钩 fadeIn/fadeOut。

单击 div 时如何使它淡出？

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