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html-网站菜单-点击菜单展开相应的导航栏，加减号可切换
一、效果图
1.点击显示菜单栏，点击x号关闭；
2.点击一级菜单，展开显示二级，并且加号变为减号；
3.点击其他一级导航，自动收起展开的导航。
二、代码实现
DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <meta http-equiv="content-language" content="zh-CN" /> <meta name="viewport" content="width=device-width,initial-scale=1.0,user-scalable=no" /> <meta name="apple-mobile-web-app-capable" content="yes" /> <meta name="apple-mobile-web-app-status-bar-style" content="black" /> <meta name="format-detection" content="telephone=no" /> <meta name="Keywords" content="" /> <meta name="Description" content="" /> <meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1"> <title>title> <script src="static/js/jquery-1.11.3.js" type="text/javascript" charset="utf-8">script> <style> .header { position: relative; height: 100px; padding: 30px; box-sizing: border-box; } .header .header-right { position: relative; float: right; } .header .l-toggle { float: left; width: 38px; height: 20px; cursor: pointer; z-index: 99; position: relative; } .header .l-toggle span { position: absolute; top: 0; right: 0; left: 0; display: block; width: 26px; height: 2px; background-color: #000; } .header .l-toggle .line1 { margin: 0 auto; -webkit-transform: rotate(0); -ms-transform: rotate(0); transform: rotate(0); -webkit-transition: margin .3s .5s ease, -webkit-transform .5s ease; transition: margin .3s .5s ease, transform .5s ease; } .header .l-toggle .line2 { margin: 8px auto 0; } .header .l-toggle .line3 { margin: 16px auto auto; -webkit-transform: rotate(0); -ms-transform: rotate(0); transform: rotate(0); -webkit-transition: margin .3s .5s ease, -webkit-transform .5s ease; transition: margin .3s .5s ease, transform .5s ease; } .header .l-toggle.hover span { background: #828282; } .header .l-toggle.hover .line1 { -webkit-transform: rotate(45deg); -ms-transform: rotate(45deg); transform: rotate(45deg); margin: 8px auto 0; -webkit-transition: margin .3s ease, -webkit-transform .5s .3s ease; transition: margin .3s ease, transform .5s .3s ease; } .header .l-toggle.hover .line3 { -webkit-transform: rotate(-45deg); -ms-transform: rotate(-45deg); transform: rotate(-45deg); margin: 8px auto 0; -webkit-transition: margin .3s ease, -webkit-transform .5s .3s ease; transition: margin .3s ease, transform .5s .3s ease; } .header .sub-menu { width: 217px; height: auto; position: absolute; right: 30px; top: 20px; z-index: 2; background: rgba(255, 255, 255, 0.83); padding: 70px 24px 30px; box-sizing: border-box; display: none; border: 1px solid rgba(0, 0, 0, 0.2); } .header.active .line { height: 100vh; background: rgba(130, 130, 130, 0.3); } .header .sub-menu_ul { width: 100%; padding: 0; } .header .sub-menu_ul li { width: 100%; margin-bottom: 20px; font-family: Microsoft YaHei UI; position: relative; text-align: right; list-style: none; } .header .sub-menu_ul li .li_title { display: flex; align-items: center; justify-content: space-between; font-size: 18px; font-weight: bold; color: #ABABAB; /* color: #333333; */ cursor: pointer; } .header .sub-menu_ul li .li_title span { color: #858585; font-size: 20px; display: none; } .header .sub-menu_ul li .li_title .spanAdd { display: block; } .menu_li_active .spanAdd { display: none !important; } .menu_li_active .spanSub { display: block !important; } .menu_li_active a { color: #333 !important; top: -7px !important; } .header .sub-menu_ul li .li_title a { position: absolute; right: 0; top: -14px; z-index: 999; font-size: 18px; font-weight: bold; color: #ABABAB; width: 66%; } .header .sub-menu_ul li a { width: 100%; display: block; font-size: 14px; font-weight: 400; color: #333333; margin-top: 15px; transition: 0.5s; text-decoration: none; } .header .sub-menu_ul li a:hover { text-decoration: underline; } .header .sub-menu_ul li .li_con { display: none; } style> head> <body> <header class="header"> <div class="header-right"> <div id="toggle" class="l-toggle"> <span class="line1">span> <span class="line2">span> <span class="line3">span> div> div> <div class="sub-menu"> <ul class="sub-menu_ul"> <li> <div class="li_title"> <span class="spanAdd">+span> <span class="spanSub" style="font-size: 29px;">-span> <a href="aboutHongtian.html">走进鸿天a> div> <div class="li_con"> <a href="aboutHongtian.html">关于鸿天a> <a href="aboutHistory.html">发展历程a> <a href="aboutCulture.html">企业文化a> <a href="aboutHonors.html">荣誉资质a> <a href="aboutBrand.html">企业品牌a> div> li> <li> <div class="li_title"> <span class="spanAdd">+span> <span class="spanSub" style="font-size: 29px;">-span> <a href="savingList.html">集团业务a> div> <div class="li_con"> <a href="savingEnvirProtection.html">ODM供应链a> <a href="savingEnvirProtection.html">品牌零售a> div> li> <li> <div class="li_title"> <span class="spanAdd">+span> <span class="spanSub" style="font-size: 29px;">-span> <a href="savingList.html">技术研发a> div> <div class="li_con"> <a href="savingEnvirProtection.html">研发中心a> <a href="savingEnvirProtection.html">印绣中心a> <a href="savingEnvirProtection.html">检测中心a> div> li> <li> <div class="li_title"> <span class="spanAdd">+span> <span class="spanSub" style="font-size: 29px;">-span> <a href="savingList.html">可持续发展a> div> <div class="li_con"> <a href="savingEnvirProtection.html">节能环保a> <a href="savingEnvirProtection.html">慈善公益a> <a href="savingEnvirProtection.html">校企合作a> div> li> <li> <div class="li_title"> <span class="spanAdd">+span> <span class="spanSub" style="font-size: 29px;">-span> <a href="focusHongtian.html">聚焦鸿天a> div> <div class="li_con"> <a href="focusHongtian.html">企业动态a> <a href="focusHongtian.html">品牌动态a> <a href="focusHongtian.html">鸿天人家a> <a href="focusHongtian.html">红色党建a> div> li> <script> $(function() { $('.sub-menu_ul li').click(function() { $(this).find('.li_con').slideToggle() $(this).siblings().find('.li_con').slideUp() if ($(this).hasClass('menu_li_active')) { $(this).removeClass('menu_li_active') } else { $(this).addClass('menu_li_active').siblings().removeClass('menu_li_active') } }) }) script> ul> div> header> <script> $(function() { $(".l-toggle").on('click', function() { var _this = $(this); if (!$(this).hasClass('hover')) { $(this).addClass('hover'); $(this).children('.line2').stop(true, true).fadeOut(300); $(this).parents(".header-right").siblings('.sub-menu').stop().fadeIn(); } else { $(this).removeClass('hover'); $(".header").removeClass("active"); $(this).children('.line2').stop(true, true).fadeIn(300); $(this).parents(".header-right").siblings('.sub-menu').stop().fadeOut(); } }); }) script> body> html>- 1
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完成~
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- 原文地址：https://blog.csdn.net/weixin_48596030/article/details/134463799