我能够让MENU-1折叠成一个汉堡包菜单,用于较小的设备,但似乎无法让MENU-2做同样的事情。有人可以告诉我哪里出错了,因为我试过复制MENU1代码但无济于事
.cd-auto-hide-header {
position: fixed;
z-index: 2;
top: 0;
left: 0;
width: 100%;
height: 60px;
background-color: #ffffff;
/* Force Hardware Acceleration */
-webkit-transform: translateZ(0);
transform: translateZ(0);
will-change: transform;
-webkit-transition: -webkit-transform .5s;
transition: -webkit-transform .5s;
transition: transform .5s;
transition: transform .5s, -webkit-transform .5s;
}
.cd-auto-hide-header::after {
clear: both;
content: "";
display: block;
}
.cd-auto-hide-header.is-hidden {
-webkit-transform: translateY(-100%);
-ms-transform: translateY(-100%);
transform: translateY(-100%);
}
@media only screen and (min-width: 1024px) {
.cd-auto-hide-header {
height: 80px;
}
}
.cd-auto-hide-header .logo,
.cd-auto-hide-header .nav-trigger {
position: absolute;
top: 50%;
bottom: auto;
-webkit-transform: translateY(-50%);
-ms-transform: translateY(-50%);
transform: translateY(-50%);
}
.cd-auto-hide-header .logo {
left: 5%;
}
.cd-auto-hide-header .logo a, .cd-auto-hide-header .logo img {
display: block;
}
.cd-auto-hide-header .nav-trigger
{
/* vertically align its content */
display: table;
height: 100%;
padding: 0 1em;
font-size: 1.2rem;
text-transform: uppercase;
color: #25283D;
font-weight: bold;
right: 0;
border-left: 1px solid #f2f2f2;
}
.cd-auto-hide-header .nav-trigger span
{
/* vertically align inside parent element */
display: table-cell;
vertical-align: middle;
}
.cd-auto-hide-header .nav-trigger em, .cd-auto-hide-header .nav-trigger em::after, .cd-auto-hide-header .nav-trigger em::before {
/* this is the menu icon */
display: block;
position: relative;
height: 2px;
width: 22px;
background-color: #25283D;
-webkit-backface-visibility: hidden;
backface-visibility: hidden;
}
.cd-auto-hide-header .nav-trigger em
{
/* this is the menu central line */
margin: 6px auto 14px;
-webkit-transition: background-color .2s;
transition: background-color .2s;
}
.cd-auto-hide-header .nav-trigger em::before, .cd-auto-hide-header .nav-trigger em::after {
position: absolute;
content: '';
left: 0;
-webkit-transition: -webkit-transform .2s;
transition: -webkit-transform .2s;
transition: transform .2s;
transition: transform .2s, -webkit-transform .2s;
}
.cd-auto-hide-header .nav-trigger em::before
{
/* this is the menu icon top line */
-webkit-transform: translateY(-6px);
-ms-transform: translateY(-6px);
transform: translateY(-6px);
}
.cd-auto-hide-header .nav-trigger em::after
{
/* this is the menu icon bottom line */
-webkit-transform: translateY(6px);
-ms-transform: translateY(6px);
transform: translateY(6px);
}
@media only screen and (min-width: 1024px) {
.cd-auto-hide-header .nav-trigger
{
display: none;
}
}
.cd-auto-hide-header.nav-open .nav-trigger em
{
/* transform menu icon into a 'X' icon */
background-color: rgba(255, 255, 255, 0);
}
.cd-auto-hide-header.nav-open .nav-trigger em::before
{
/* rotate top line */
-webkit-transform: rotate(-45deg);
-ms-transform: rotate(-45deg);
transform: rotate(-45deg);
}
.cd-auto-hide-header.nav-open .nav-trigger em::after
{
/* rotate bottom line */
-webkit-transform: rotate(45deg);
-ms-transform: rotate(45deg);
transform: rotate(45deg);
}
.cd-primary-nav {
display: inline-block;
float: right;
height: 100%;
padding-right: 5%;
}
.cd-primary-nav > ul {
position: absolute;
z-index: 2;
top: 60px;
left: 0;
width: 100%;
background-color: #ffffff;
display: none;
box-shadow: 0 14px 20px rgba(0, 0, 0, 0.2);
}
.cd-primary-nav > ul a {
/* target primary-nav links */
display: block;
height: 50px;
line-height: 50px;
padding-left: 5%;
color: #25283D;
font-size: 1.8rem;
border-top: 1px solid #f2f2f2;
}
.cd-primary-nav > ul a:hover, .cd-primary-nav > ul a.active {
color: #8F3985;
}
@media only screen and (min-width: 1024px) {
.cd-primary-nav {
/* vertically align its content */
display: table;
}
.cd-primary-nav > ul {
/* vertically align inside parent element */
display: table-cell;
vertical-align: middle;
/* reset mobile style */
position: relative;
width: auto;
top: 0;
padding: 0;
background-color: transparent;
box-shadow: none;
}
.cd-primary-nav > ul::after {
clear: both;
content: "";
display: block;
}
.cd-primary-nav > ul li {
display: inline-block;
float: left;
margin-right: 1.5em;
}
.cd-primary-nav > ul li:last-of-type {
margin-right: 0;
}
.cd-primary-nav > ul a {
/* reset mobile style */
height: auto;
line-height: normal;
padding: 0;
border: none;
}
}
.nav-open .cd-primary-nav ul,
.cd-primary-nav ul:target {
/*
show primary nav - mobile only
:target is used to show navigation on no-js devices
*/
display: block;
}
@media only screen and (min-width: 1024px) {
.nav-open .cd-primary-nav ul,
.cd-primary-nav ul:target {
display: table-cell;
}
}
/* --------------------------------
2. Auto-Hiding Navigation - with Sub Nav
-------------------------------- */
.cd-secondary-nav {
position: relative;
z-index: 1;
clear: both;
width: 100%;
height: 50px;
background-color: #25283D;
/* Force Hardware Acceleration */
-webkit-transform: translateZ(0);
transform: translateZ(0);
will-change: transform;
-webkit-transition: -webkit-transform .5s;
transition: -webkit-transform .5s;
transition: transform .5s;
transition: transform .5s, -webkit-transform .5s;
}
.cd-secondary-nav::after {
/* gradient on the right - to indicate it's possible to scroll */
content: '';
position: absolute;
z-index: 1;
top: 0;
right: 0;
height: 100%;
width: 35px;
background: transparent;
background: -webkit-linear-gradient(right, #25283D, rgba(37, 40, 61, 0));
background: linear-gradient(to left, #25283D, rgba(37, 40, 61, 0));
pointer-events: none;
-webkit-transition: opacity .2s;
transition: opacity .2s;
}
.cd-secondary-nav.nav-end::after {
opacity: 0;
}
.cd-secondary-nav ul, .cd-secondary-nav li, .cd-secondary-nav a {
height: 100%;
}
.cd-secondary-nav ul {
}
.cd-secondary-nav ul::after {
clear: both;
content: "";
display: block;
}
.cd-secondary-nav li {
display: inline-block;
float: left;
/* do not shrink - elements float on the right of the element */
-webkit-flex-shrink: 0;
-ms-flex-negative: 0;
flex-shrink: 0;
}
.cd-secondary-nav li:last-of-type {
padding-right: 20px;
}
.cd-secondary-nav a {
display: block;
opacity: .6;
line-height: 50px;
padding: 0 1em;
}
.cd-secondary-nav a:hover, .cd-secondary-nav a.active {
opacity: 1;
}
@media only screen and (min-width: 1024px) {
.cd-secondary-nav {
height: 70px;
overflow: visible;
}
.cd-secondary-nav ul {
/* reset mobile style */
display: block;
text-align: center;
}
.cd-secondary-nav li {
/* reset mobile style */
float: none;
-webkit-flex-shrink: 1;
-ms-flex-negative: 1;
flex-shrink: 1;
}
.cd-secondary-nav a {
line-height: 70px;
}
.cd-secondary-nav a.active {
box-shadow: inset 0 -3px #8F3985;
}
}
.cd-secondary-nav.fixed {
position: fixed;
top: 60px;
}
.cd-secondary-nav.slide-up {
-webkit-transform: translateY(-60px);
-ms-transform: translateY(-60px);
transform: translateY(-60px);
}
@media only screen and (min-width: 1024px) {
.cd-secondary-nav.fixed {
top: 80px;
box-shadow: 0 -6px 0 #25283D;
}
.cd-secondary-nav.slide-up {
-webkit-transform: translateY(-80px);
-ms-transform: translateY(-80px);
transform: translateY(-80px);
}
}

<header class="cd-auto-hide-header">
<div class="logo"><a href="#0"><img src="img/cd-logo.svg" alt="Logo"></a></div>
<nav class="cd-primary-nav">
<a href="#cd-navigation" class="nav-trigger">
<span>
<em aria-hidden="true"></em>
MENU-1
</span>
</a> <!-- .nav-trigger -->
<ul id="cd-navigation">
<li><a href="#0">The team</a></li>
<li><a href="#0">Our Products</a></li>
<li><a href="#0">Our Services</a></li>
<li><a href="#0">Shopping tools</a></li>
<li><a href="#0">Contact Us</a></li>
</ul>
</nav> <!-- .cd-primary-nav -->
</header> <!-- .cd-auto-hide-header -->
<section class="cd-hero">
<div class="cd-hero-content">
<!-- your content here -->
</div>
</section> <!-- .cd-hero -->
<nav class="cd-secondary-nav">
<span>
<em aria-hidden="true"></em>
MENU-2
</span>
<ul>
<li><a class="active" href="#0">Intro</a></li>
<li><a href="#0">Features</a></li>
<li><a href="#0">Photos</a></li>
<li><a href="#0">Videos</a></li>
<li><a href="#0">Specs</a></li>
<li><a href="#0">Support</a></li>
<li><a href="#0">Compare</a></li>
<li><a href="#0">Buy</a></li>
</ul>
</nav> <!-- .cd-secondary-nav -->
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