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| CSS Responsive Sidebar Navigation |
Structure
HTML structure consists of two main elements: <header>, with the logo of the website, the search box, the top navigation; and an element <main> to store the main content (div.content-wrapper) + lateral navigation (nav.cd-side-nav).
In our HTML structure elements .cd-search and .cd-top-nav are within the <header>, while you switch to the mobile version moved to block .cd-side-nav.
<header class="cd-main-header">
<a href="#0" class="cd-logo"><img src="img/cd-logo.svg" alt="Logo"></a>
<div class="cd-search">
<form action="#0">
<input type="search" placeholder="Search...">
</form>
</div> <!-- cd-search -->
<a href="#0" class="cd-nav-trigger">Menu<span></span></a>
<nav class="cd-nav">
<ul class="cd-top-nav">
<li><a href="#0">Tour</a></li>
<li><a href="#0">Support</a></li>
<li class="has-children account">
<a href="#0">
<img src="img/cd-avatar.png" alt="avatar">
Account
</a>
<ul>
<li><a href="#0">My Account</a></li>
<!-- other list items here -->
</ul>
</li>
</ul>
</nav>
</header> <!-- .cd-main-header -->
<main class="cd-main-content">
<nav class="cd-side-nav">
<ul>
<li class="cd-label">Main</li>
<li class="has-children overview">
<a href="#0">Overview</a>
<ul>
<li><a href="#0">All Data</a></li>
<!-- other list items here -->
</ul>
</li>
<li class="has-children notifications active">
<a href="#0">Notifications<span class="count">3</span></a>
<ul>
<li><a href="#0">All Notifications</a></li>
<!-- other list items here -->
</ul>
</li>
<!-- other list items here -->
</ul>
<!-- other unordered lists here -->
</nav>
<div class="content-wrapper">
<!-- main content here -->
</div> <!-- .content-wrapper -->
</main> <!-- .cd-main-content -->
Styles
We'll create a style configuration for the three types of screens.
For small devices, the panel will occupy 100% of the width, position: absolute, hidden by default (visibility: hidden). Clicking / tapas for .cd-nav-trigger, change the display mode (using the class .nav-is-visible).
.cd-side-nav {
position: absolute;
left: 0;
top: 0;
width: 100%;
visibility: hidden;
opacity: 0;
transition: opacity 0.2s 0s, visibility 0s 0.2s;
}
.cd-side-nav.nav-is-visible {
opacity: 1;
visibility: visible;
transition: opacity 0.2s 0s, visibility 0s 0s;
}
For medium-sized screens (more than 768px) display the status of navigation minimized. Position: relative, fixed width (110px) and float: left, so she stuck to the left side of the element <main>.
@media only screen and (min-width: 768px) {
.cd-side-nav {
position: relative;
float: left;
width: 110px;
/* reset style */
visibility: visible;
opacity: 1;
}
}
@media only screen and (min-width: 768px) {
.cd-main-content .content-wrapper {
margin-left: 110px;
}
}
For larger screens (more than 1170px) will show immediately fully disclosed version.
Working with events
The original structure elements .cd-search and .cd-top-nav are within the <header>.
For small screens (less than 1170px), move these items into .cd-side-nav.
var resizing = false;
moveNavigation();
$(window).on('resize', function(){
if( !resizing ) {
window.requestAnimationFrame(moveNavigation);
resizing = true;
}
});
function moveNavigation(){
var mq = checkMQ(); //this function returns mobile,tablet or desktop
if ( mq == 'mobile' && topNavigation.parents('.cd-side-nav').length == 0 ) { //topNavigation = $('.cd-top-nav')
detachElements();
topNavigation.appendTo(sidebar); //sidebar = $('.cd-side-nav')
searchForm.prependTo(sidebar);
} else if ( ( mq == 'tablet' || mq == 'desktop') && topNavigation.parents('.cd-side-nav').length > 0 ) {
detachElements();
searchForm.insertAfter(header.find('.cd-logo')); //header = $('.cd-main-header')
topNavigation.appendTo(header.find('.cd-nav'));
}
resizing = false;
}
function detachElements() {
topNavigation.detach();//topNavigation = $('.cd-top-nav')
searchForm.detach();//searchForm = $('.cd-search')
}
Besides all this we have integrated the plugin jQuery-menu-aim for a more comfortable working with navigation.
Source : https://codyhouse.co/gem/responsive-sidebar-navigation/