CSS+JS更改alert的默认对话框

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CSS+JS更改alert的默认对话框,第1张

百度都是些垃圾回答,我也找了半天,参考这篇文章,亲测可行,简单方便,引入js直接替换页面alert,不需要改原本的代码。

自定义alert样式

alert属于BOM中的window对象的方法,所以我们无法通过改dom文档css来修改样式,但可以直接重写window.alert方法,以此达到目的

导入3个js 和 1个css,可以通过css改变样式

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<title>jQuery Alert Dialogs</title>

<meta http-equiv="Content-Type" content="text/htmlcharset=UTF-8" />

<meta name="description" content="This is a demonstration page." />

<meta name="keywords" content="alert, confirm, prompt, demo" />

<style type="text/css">

BODY,

HTML {

padding: 0px

margin: 0px

}

BODY {

font-family: Arial, Helvetica, sans-serif

font-size: 12px

background: #FFF

padding: 15px

}

H1 {

font-size: 20px

font-weight: normal

}

H2 {

font-size: 16px

font-weight: normal

}

FIELDSET {

border: solid 1px #CCC

-moz-border-radius: 16px

-webkit-border-radius: 16px

border-radius: 16px

padding: 1em 2em

margin: 1em 0em

}

LEGEND {

color: #666

font-size: 16px

padding: 0em .5em

}

PRE {

font-family: "Courier New", monospace

font-size: 11px

color: #666

background: #F8F8F8

padding: 1em

-moz-border-radius: 8px

-webkit-border-radius: 8px

border-radius: 8px

}

/* Custom dialog styles */

#popup_container.style_1 {

font-family: Georgia, serif

color: #A4C6E2

background: #005294

border-color: #113F66

}

#popup_container.style_1 #popup_title {

color: #FFF

font-weight: normal

text-align: left

background: #76A5CC

border: solid 1px #005294

padding-left: 1em

}

#popup_container.style_1 #popup_content {

background: none

}

#popup_container.style_1 #popup_message {

padding-left: 0em

}

#popup_container.style_1 INPUT[type='button'] {

border: outset 2px #76A5CC

color: #A4C6E2

background: #3778AE

}

</style>

<!-- Dependencies -->

<script src="jquery.js" type="text/javascript"></script>

<script src="jquery.ui.draggable.js" type="text/javascript"></script>

<!-- Core files -->

<script src="jquery.alerts.js" type="text/javascript"></script>

<link href="jquery.alerts.css" rel="stylesheet" type="text/css" media="screen" />

<!-- Example script -->

<script type="text/javascript">

$(document).ready( function() {

$("#alert_button").click( function() {

jAlert('This is a custom alert box', 'Alert Dialog')

})

$("#confirm_button").click( function() {

jConfirm('Can you confirm this?', 'Confirmation Dialog', function(r) {

jAlert('Confirmed: ' + r, 'Confirmation Results')

})

})

$("#prompt_button").click( function() {

jPrompt('Type something:', 'Prefilled value', 'Prompt Dialog', function(r) {

if( r ) alert('You entered ' + r)

})

})

$("#alert_button_with_html").click( function() {

jAlert('You can use HTML, such as <strong>bold</strong>, <em>italics</em>, and <u>underline</u>!')

})

$(".alert_style_example").click( function() {

$.alerts.dialogClass = $(this).attr('id')// set custom style class

jAlert('This is the custom class called “style_1”', 'Custom Styles', function() {

$.alerts.dialogClass = null// reset to default

})

})

})

</script>

</head>

<body>

<h1><a href="http://abeautifulsite.net/2008/12/jquery-alert-dialogs/">« jQuery Alert Dialogs (Alert, Confirm, &Prompt Replacements)</a></h1>

<h2>Basic Examples</h2>

<fieldset>

<legend>Alert</legend>

<pre>

jAlert('This is a custom alert box', 'Alert Dialog')

</pre>

<p>

<input id="alert_button" type="button" value="Show Alert" />

</p>

</fieldset>

<fieldset>

<legend>Confirm</legend>

<pre>

jConfirm('Can you confirm this?', 'Confirmation Dialog', function(r) {

jAlert('Confirmed: ' + r, 'Confirmation Results')

})

</pre>

<p>

<input id="confirm_button" type="button" value="Show Confirm" />

</p>

</fieldset>

<fieldset>

<legend>Prompt</legend>

<pre>

jPrompt('Type something:', 'Prefilled value', 'Prompt Dialog', function(r) {

if( r ) alert('You entered ' + r)

})

</pre>

<p>

<input id="prompt_button" type="button" value="Show Prompt" />

</p>

</fieldset>

<h2>Additional Examples</h2>

<fieldset>

<legend>With HTML</legend>

<pre>

jAlert('You can use HTML, such as <strong>bold</strong>, <em>italics</em>, and <u>underline</u>!')

</pre>

<p>

<input id="alert_button_with_html" type="button" value="Show Alert" />

</p>

</fieldset>

<fieldset>

<legend>Alternate Styles</legend>

<p>

By changing the value of the <samp>$.alerts.dialogClass</samp>property (and creating

your own CSS class), you can changes the style of your dialogs:

</p>

<p>

<input id="style_1" class="alert_style_example" type="button" value="Style 1" />

</p>

<p>

View the plugin source for additional properties that can be modifed at runtime.

</p>

</fieldset>

<p>

<a href="http://abeautifulsite.net/2008/09/jquery-context-menu-plugin/">Back to the project page</a>

</p>

</body>

</html>