


How to Maintain Active Navigation State in Bootstrap CSS Without Default Background Colors?
Bootstrap CSS: Maintaining Active Navigation
Bootstrap provides a navigation system that allows users to easily navigate through different sections of a website. However, sometimes it is desired to customize the menu without the default background colors. In such cases, it may be necessary to implement additional logic to maintain the active navigation state when scrolling or clicking on menu items.
Consider the following scenario: a custom menu has been created using HTML and CSS, similar to the subnav menu on the Bootstrap website. However, the active class does not switch when scrolling down or clicking on the menu items.
HTML:
<code class="html"><ul class="menu"> <li><a href="#" aria-current="page">Home</a></li> <li><a href="#about">About Us</a></li> <li><a href="#contact">Contact</a></li> </ul></code>
CSS:
<code class="css">.menu { list-style:none; } .menu > li { float: left; } .menu > li > a { color: #555; float: none; padding: 10px 16px 11px; display: block; } .menu > li > a:hover { color: #F95700; } .menu a[aria-current="page"], .menu a[aria-current="page"]:hover { color:#F95700; }</code>
To fix this issue, additional JavaScript is required. The following jQuery code clears the active class from all menu items before adding it to the current item:
JavaScript:
<code class="js">$('.navbar li').click(function(e) { $('.navbar li.active').removeClass('active'); var $this = $(this); if (!$this.hasClass('active')) { $this.addClass('active'); } e.preventDefault(); });</code>
By incorporating this code, the active class will now switch correctly when navigating through the menu. This solution allows for a customized navigation system that maintains the desired visual behavior.
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