基于JavaScript实现熔岩灯效果导航菜单
熔岩灯效果 就是鼠标移入的时候,背景跟着滑过去~
两方法如下:
方法一:两个文件,一个HTML,一个JS。
HTML源码,
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1"> <!-- <link href="favicon.ico" rel="shortcut icon" type="image/x-icon" /> <link href="favicon.ico" rel="Bookmark" type="image/x-icon" /> --> <meta name="Generator" content="EditPlus®"> <meta name="Author" content=""> <meta name="Keywords" content=""> <meta name="Description" content=""> <title>Document</title> <link href="" rel="stylesheet" /> <style type="text/css"> #nav { position: relative; background: #292929; float: left; } #nav li { float: left; list-style: none; border-right: 1px solid #4a4a4a; border-left: 1px solid black; } #nav li a { color: #e3e3e3; position: relative; z-index: 2; float: left; font-size: 30px; font-family: helvetica, arial, sans-serif; text-decoration: none; padding: 30px 45px; } ul, li { margin: 0; padding: 0; } #blob { border-right: 1px solid #0059ec; border-left: 1px solid #0059ec; position: absolute; top: 0; z-index : 1; background: #0b2b61; background: -moz-linear-gradient(top, #0b2b61, #1153c0); background: -webkit-gradient(linear, left top, left bottom, from(#0b2b61), to(#1153c0)); -moz-border-radius: 4px; -webkit-border-radius: 4px; -moz-box-shadow: 2px 3px 10px #011331; -webkit-box-shadow: 2px 3px 10px #011331; } </style> <script type="text/javascript" src="http://apps.bdimg.com/libs/jquery/1.9.1/jquery.min.js"></script> <script type="text/javascript" src="http://apps.bdimg.com/libs/jqueryui/1.9.2/jquery-ui.min.js"></script> <script type="text/javascript" src="jquery.spasticNav.js"></script> </head> <body> <ul id="nav"> <li><a href="#">Home</a></li> <li id="selected"><a href="#">About</a></li> <li><a href="#">Blog</a></li> <li><a href="#">Contact</a></li> </ul> <script type="text/javascript"> $('#nav').spasticNav(); </script> </body> </html>
JS源码,
(function($) { $.fn.spasticNav = function(options) { options = $.extend({ overlap : 15, speed : 500, reset : 1500, color : '#9f1f31', easing : 'easeOutExpo' }, options); return this.each(function() { var nav = $(this), currentPageItem = $('#selected', nav), blob, reset; $('<li id="blob"></li>').css({ width : currentPageItem.outerWidth(), height : currentPageItem.outerHeight() + options.overlap, left : currentPageItem.position().left, top : currentPageItem.position().top - options.overlap / 2, backgroundColor : options.color }).appendTo(this); blob = $('#blob', nav); $('li:not(#blob)', nav).hover(function() { // mouse over clearTimeout(reset); blob.animate( { left : $(this).position().left, width : $(this).width() }, { duration : options.speed, easing : options.easing, queue : false } ); }, function() { // mouse out reset = setTimeout(function() { blob.animate({ width : currentPageItem.outerWidth(), left : currentPageItem.position().left }, options.speed) }, options.reset); }); }); // end each }; })(jQuery);
方法二,使用jquery插件 jquery.lavalamp.min.js 实现。
需要调用的文件有:jQuery库,jQuery缓动插件(jquery.easing.min.js),火焰灯效果插件(jquery.lavalamp.min.js)以及一个ul li列表的样式文件。
详情参看:http://www.jb51.net/article/102028.htm
插件官网介绍:http://lavalamp.magicmediamuse.com
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持我们。
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