网页右下角增加导航菜单JS和css特效

   有时候菜单多都不知道一个网页能否装的下，在网页右下角设计一个下拉弹出导航条菜单的确可以分担下。又不影响整体网站样式，挺不错的效果。

在角度增加以下JS代码：

<div id="cd-nav">

<a href="#0" class="cd-nav-trigger"><span></span></a>

<nav id="cd-main-nav">

<ul>

<li><a href="https://www.qiuhai.com" title="学习吧_一个不错的网站v">首页</a></li>

<li><a href="https://www.qiuhai.com/doc">易优手册</a></li>

<li><a href="https://www.qiuhai.com/copy">小秋建站</a></li>

<li><a href="https://www.qiuhai.com/erser/">商业源码</a></li>

<li><a href="https://www.qiuhai.com/demo.php">易优cms源码下载</a></li>

</ul>

</nav>

</div>

<script>

jQuery(document).ready(function($){

// browser window scroll (in pixels) after which the "menu" link is shown

var offset = 300;

var navigationContainer = $('#cd-nav'),

mainNavigation = navigationContainer.find('#cd-main-nav ul');

//hide or show the "menu" link

checkMenu();

$(window).scroll(function(){

checkMenu();

});

//open or close the menu clicking on the bottom "menu" link

$('.cd-nav-trigger').on('click', function(){

$(this).toggleClass('menu-is-open');

//we need to remove the transitionEnd event handler (we add it when scolling up with the menu open)

mainNavigation.off('webkitTransitionEnd otransitionend oTransitionEnd msTransitionEnd transitionend').toggleClass('is-visible');

});

function checkMenu() {

if( $(window).scrollTop() > offset && !navigationContainer.hasClass('is-fixed')) {

navigationContainer.addClass('is-fixed').find('.cd-nav-trigger').one('webkitAnimationEnd oanimationend msAnimationEnd animationend', function(){

mainNavigation.addClass('has-transitions');

});

} else if ($(window).scrollTop() <= offset) {

//check if the menu is open when scrolling up

if( mainNavigation.hasClass('is-visible')  && !$('html').hasClass('no-CSStransitions') ) {

//close the menu with animation

mainNavigation.addClass('is-hidden').one('webkitTransitionEnd otransitionend oTransitionEnd msTransitionEnd transitionend', function(){

//wait for the menu to be closed and do the rest

mainNavigation.removeClass('is-visible is-hidden has-transitions');

navigationContainer.removeClass('is-fixed');

$('.cd-nav-trigger').removeClass('menu-is-open');

});

//check if the menu is open when scrolling up - fallback if transitions are not supported

} else if( mainNavigation.hasClass('is-visible')  && $('html').hasClass('no-csstransitions') ) {

mainNavigation.removeClass('is-visible has-transitions');

navigationContainer.removeClass('is-fixed');

$('.cd-nav-trigger').removeClass('menu-is-open');

//scrolling up with menu closed

} else {

navigationContainer.removeClass('is-fixed');

mainNavigation.removeClass('has-transitions');

}

} 

}

});

</script>

CSS样式  和完整的JS  下载附件里面有需要的就点击下载