我已经在Bootstrap网站上集成了注册模式，并希望限制每个会话的访问者的印象数量，而不是在每个页面上看到两次已订阅。打开网页5秒后出现模式，仅一旦用户单击"关闭"按钮。
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//Modal
$(document).ready(function () {
//Fade in delay for the background overlay (control timing here)
$("#bkgOverlay").delay(5000).fadeIn(400);
//Fade in delay for the popup (control timing here)
$("#delayedPopup").delay(6000).fadeIn(400);
//Hide dialogue and background when the user clicks the close button
$("#btnClose").click(function (e) {
HideDialog();
e.preventDefault();
});
});
//Controls how the modal popup is closed with the close button
function HideDialog() {
$("#bkgOverlay").fadeOut(400);
$("#delayedPopup").fadeOut(300);
}html {
background-color: #333;
}
h2 {
text-align: center;
}
/****Modal*****/
/*Default Modal Styles*/
/* This is the background overlay */
.backgroundOverlay {
position: fixed;
top: 0;
right: 0,
bottom: 0;
left: 0;
height: 100%;
width: 100%;
margin: 0;
padding: 0;
background: #000000;
opacity: .85;
filter: alpha(opacity=85);
-moz-opacity: .85;
z-index: 101;
display: none;
}
/* This is the Popup Window */
.delayedPopupWindow {
display: none;
position: fixed;
width: auto;
max-width: 480px;
height: 310px;
top: 50%;
left: 50%;
margin-left: -260px;
margin-top: -180px;
background-color: #efefef;
border: 2px solid #333;
z-index: 102;
padding: 10px 20px;
}
/* This is the closing button */
#btnClose {
width:100%;
display: block;
text-align: right;
text-decoration: none;
color: #BCBCBC;
}
/* This is the closing button hover state */
#btnClose:hover {
color: #c90c12;
}
/* This is the description headline and paragraph for the form */
#delayedPopup > div.formDescription {
float: left;
display: block;
width: 44%;
padding: 1% 3%;
font-size: 18px;
color: #666;
clear: left;
}
/* This is the styling for the form's headline */
#delayedPopup > div.formDescription h2 {
color: #444444;
font-size: 36px;
line-height: 40px;
}
/*MailChimp Signup Form*/
/* This is the signup form body */
#delayedPopup #mc_embed_signup {
float: left;
width: 47%;
padding: 1%;
display: block;
font-size: 16px;
color: #666;
margin-left: 1%;
}
/* This is the styling for the signup form inputs */
#delayedPopup #mc-embedded-subscribe-form input {
width: 95%;
height: 30px;
font-size: 18px;
padding: 3px;
margin-bottom: 5px;
}
/* This is the styling for the signup form inputs when they are being hovered with the mouse */
#delayedPopup #mc-embedded-subscribe-form input:hover {
border:solid 2px #97c1c0;
box-shadow: 0 1px 3px #AAAAAA;
}
/* This is the styling for the signup form inputs when they are focused */
#delayedPopup #mc-embedded-subscribe-form input:focus {
border:solid 2px #333;
box-shadow: none;
}
/* This is the styling for the signup form submit button */
#delayedPopup #mc-embedded-subscribe {
width: 100%!important;
height: 40px!important;
margin: 10px auto 0 auto;
background: #333;
border: none;
color: #fff;
}
/* This is the styling for the signup form submit button hover state */
#delayedPopup #mc-embedded-subscribe:hover {
background: #97c1c0;
color: #fff;
box-shadow:none!important;
cursor: pointer;
}
.delayedPopupWindow {
display: none;
position: fixed;
width: auto;
max-width: 480px;
height: 310px;
top: 50%;
left: 50%;
margin-left: -260px;
margin-top: -180px;
background-color: #efefef;
border: 2px solid #333;
z-index: 102;
padding: 10px 20px;
}<html lang="en">
<head>
<title>HOME</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<link href="https://fonts.googleapis.com/css?family=Roboto:400,500,700" rel="stylesheet">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>
<h2>This a demo page</h2>
<!---Sign Up Modal---->
<div id="bkgOverlay" class="backgroundOverlay" style="display: block;"></div>
<div id="delayedPopup" class="delayedPopupWindow" style="display: block;">
<!-- This is the close button -->
<a href="#" id="btnClose" title="Click here to close this deal box.">[ X ]</a>
<!-- This is the left side of the popup for the description -->
<div class="formDescription">
<h2>Sign Up and <span style="color: #333; font-weight: bold;">Save!</span></h2>
<p>Sign up today and be the first to know about our SPECIALS!</p>
</div>
<!-- Begin MailChimp Signup Form -->
<div id="mc_embed_signup">
<form action="" method="post" id="mc-embedded-subscribe-form" name="mc-embedded-subscribe-form" class="validate" target="_blank" novalidate="">
<div class="mc-field-group">
<label for="mce-FNAME">First Name
<span class="asterisk">*</span>
</label>
<input type="text" value="" name="FNAME" class="" id="mce-FNAME">
</div>
<div class="mc-field-group">
<label for="mce-LNAME">Last Name
<span class="asterisk">*</span>
</label>
<input type="text" value="" name="LNAME" class="" id="mce-LNAME">
</div>
<div class="mc-field-group">
<label for="mce-EMAIL">Email Address
<span class="asterisk">*</span>
</label>
<input type="email" value="" name="EMAIL" class="required email" id="mce-EMAIL">
</div>
<div id="mce-responses" class="clear">
<div class="response" id="mce-error-response" style="display:none"></div>
<div class="response" id="mce-success-response" style="display:none"></div>
</div>
<!-- real people should not fill this in and expect good things - do not remove this or risk form bot signups-->
<div style="position: absolute; left: -5000px;">
<input type="text" name="PLEASE INPUT THE MAILCHIMP CODE" value="">
</div>
<div class="clear">
<input type="submit" value="Save Money!" name="subscribe" id="mc-embedded-subscribe" class="button">
</div>
</form>
</div>
<!-- End MailChimp Signup Form -->
</div> <!---End of Sign Up Modal-->
<!------JS----->
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
</body>
</html>使用carhartl的jQuery-cookie插件。
在显示模式之前检查cookie。如果存在，请不要显示。如果不是，请存储新的cookie并显示模式。
$(document).ready(function() {
if ($.cookie('modal_shown') == null) {
$.cookie('modal_shown', 'yes', { expires: 7, path: '/' });
$('#bkgOverlay').modal('show');
}
}）;