The toggle feature of the Bootstrap responsive navbar is not functioning properly

I am currently implementing Twitter Bootstrap in a Rails project, but I'm encountering issues with the responsive navbar. When I resize the screen, the menu toggle button appears along with the navbar options open below it. Upon further shrinking, the navbar options finally hide as expected. However, clicking the navbar menu toggle button has no effect. I have verified that jQuery is loaded and that I am using the latest version of Bootstrap. Below is the code snippet:

.navbar.navbar-inverse.navbar-fixed-top{ role: 'navigation', style: 'background-color:#000066' }
    .container
        .navbar-header
            %button.navbar-toggle.pull-right{ type: 'button', data: { toggle: "collapse", target: ".navbar-ex1-collapse" } }
                %span.sr-only Toggle Navigation
                %span.icon-bar
                %span.icon-bar
                %span.icon-bar
            %a.navbar-brand{ href: root_path }
                %strong
                    L
                    %i.fa.fa-cog{ style: 'font-size:80%;margin:0 -2px;' }
                    gSMART
        .collapse.navbar-collapse.navbar-ex1-collapse{ role: 'navigation' }
            %ul.nav.navbar-nav.navbar-right
                %li
                    %a{ href: root_path, class: set_css_if( path: root_path ) }
                        HOME
                %li
                    %a{ href: about_path, class: set_css_if( path: about_path ) }
                        ABOUT
                %li
                    %a{ href: faq_path, class: set_css_if( path: faq_path ) }
                        FAQs
                %li
                    %a{ href: resources_path, class: set_css_if( path: resources_path ) }
                        MANUALS and RESOURCES
                -if current_user
                    %li
                        %a{ href: logout_path, class: set_css_if( path: logout_path ) }
                            LOGOUT
                -else 
                    %li
                        %a{ href: login_path, class: set_css_if( path: login_path ) }
                            LOGIN

For more details, here are my layout page, application.js, and application.css files.

Layout:

%html{ lang: :en }
  %head
    %title
      CogSMART
    %meta{ name: "viewport", content: "width=device-width, initial-scale=1.0" }

    = stylesheet_link_tag 'http://fonts.googleapis.com/css?family=Lato:300,400,700,900,300italic,400italic,700italic,900italic'
    = stylesheet_link_tag "//netdna.bootstrapcdn.com/font-awesome/4.1.0/css/font-awesome.min.css"
    = stylesheet_link_tag    "application", media: "all", "data-turbolinks-track" => true

    = javascript_include_tag "application", "data-turbolinks-track" => true

    = csrf_meta_tags

  %body.pull_top
    = render 'partials/navbar'
    #coming_soon
      .head
        .container
          .span12.text
            %h4
              CogSMART stands for:
            %h4
              Cognitive Symptom Management and Rehabilitation Therapy

app.js

//
//= require jquery
//= require jquery_ujs
//= require turbolinks
//= require_tree ./clean_canvas

app.css

/*
 *= require_tree ./clean_canvas_v2
 *= require_self
 */
jquerycsstwitter-bootstrapnavbar

Answer №1

The issue lies in the order of loading CSS files, specifically before bootstrap: about.css, background.css, etc. One of these classes is causing trouble with the menu functionality. Since the CSS is minified, it's hard to pinpoint the exact problem, but it's likely in bootstrap-overrides.css. The problematic CSS code is as follows: removing it should fix the navbar:

@media (max-width: 991px) {
    .navbar-nav .open .dropdown-menu {
        position: static;
        float: none;
        width: auto;
        margin-top: 0;
        background-color: transparent; 
        border: 0;
        box-shadow: none
    }

    .navbar-nav .open .dropdown-menu > li > a, .navbar-nav .open .dropdown-menu .dropdown-header {
        padding: 5px 15px 5px 25px
    }

    .navbar-nav .open .dropdown-menu > li > a:hover, .navbar-nav .open .dropdown-menu > li > a:focus {
        background-image: none
    }
}

@media (min-width: 992px) {
    .navbar .collapse {
        display: block !important
    }
}

@media (max-width: 991px) {
    .navbar .navbar-header {
        float: none
    }

    .navbar .navbar-toggle {
        display: block
    }

    .navbar .collapse {
        display: none !important
    }

    .navbar .navbar-collapse {
        max-height: 340px;
        overflow-x: visible;
        border-top: 1px solid transparent;
        box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
        -webkit-overflow-scrolling: touch
    }

    .navbar .navbar-collapse.in {
        overflow-y: auto
    }

    .navbar ul.navbar-nav {
        padding: 0px 20px
    }

    .navbar ul.navbar-nav.navbar-right {
        float: left !important
    }

    .navbar ul.navbar-nav > li {
        float: none
    }

    .navbar ul.navbar-nav .open .dropdown-menu > li > a {
        color: #999;
        line-height: 25px;
        font-weight: bold;
        padding: 5px 15px 5px 35px;
	font-size: 15px
    }

    .navbar ul.navbar-nav .open .dropdown-menu > li > a:hover {
        color: #fff;
	background: none
    }
}

Additionally, there may be issues in your JavaScript files.

Answer №2

After analyzing your code, I have identified some issues that may be causing problems for you. It seems that the CSS in your menu is particularly problematic.

.navbar-collapse.collapse {
    display: block !important;
    height: auto !important;
    padding-bottom: 0;
    overflow: visible !important;
}

I recommend removing all of this code. Are you attempting to toggle between display: hide/block when the button is selected, similar to Bootstrap's functionality?

You should then include the following property in your CSS:

.navbar .navbar-collapse.in {
    display: block;
}

Furthermore, consider removing the !important from this class to achieve the desired outcome:

.collapse.in {
    display: block;
}

By implementing these changes, your menu should function properly. One thing to note is that your menu does not remove the .in class when clicked for the second time. I hope this information proves helpful.

Answer №3

While I am not familiar with ruby, in regards to bootstrap, it appears that you have overlooked

data-toggle which should be written as a single phrase with a hyphen, like so:

data-toggle="collapse"

or, it could also be written like this:

{ type: 'button', class:"navbar-toggle", 
data-toggle: "collapse", data-target: "navbar-ex1-collapse" }

Answer №4

It seems that the issues with responsiveness you're facing are likely caused by CSS not loading before JS;

Below are some errors that I identified:

@media (min-width: 768px)
 .navbar-collapse.collapse
 {display: block !important;}

This explains why your menu is failing to collapse.

Typically, you should be able to toggle this class in .in

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