Using namespaces in Rails to encapsulate CSS styles

Is there a way to add namespaces to CSS within a Rails project?

I have two pre-defined CSS files and two application layouts. I want the first layout to use one CSS file, and the second layout to use the other. However, both CSS files have styles for the same classes, causing things to become mixed up if not separated properly.

One of my controllers uses an admin namespace. I attempted to copy the first CSS file into an admin folder, but it did not work as expected.

Folder Structure:

stylesheets\admin\screen.css
           \styles.css

views\layouts\application.html.haml 
             \aplication2.html.haml

---UPDATE---

application.html.haml :

%html
 %head
 %title Page
 = stylesheet_link_tag "application", media: "all", "data-turbolinks-track" =>  true 
 = javascript_include_tag "application", "data-turbolinks-track" =>  true 
 = csrf_meta_tags
 = favicon_link_tag 'favicon.ico'
 %body
  .wrapper
   .page
     .header-container
       .header
         .quick-access
           %form#search_mini_form{action: "product_list.html", method: "get"}
             .form-search
               %label{for: "search"} Search:
               %input#search.input-text{maxlength: "128", name: "q", type: "text", value: ""}/ 
              %button.button{title: "Search", type: "submit"}
                %span
                  %span Search
          %p.welcome-msg Default welcome msg!
          %ul.links
            %li.first
              %a{href: "dashboard.html", title: "My Account"} My Account
            %li
              %a.top-link-cart{href: "cart.html", title: "My Cart"} My Cart
            %li.last
              %a.top-link-checkout{href: "checkout.html", title: "Checkout"} Checkout
    .nav-container
      %ul#nav
        - @categories.each do  |cat|
          %li.level0.nav-1.level-top.first
            %a.level-top{href: "#"}
              %span=cat.label
        = yield
    .col-left.sidebar
      .col-right.sidebar
        .block.block-cart
          .block-title
            %strong
              %span My Cart
          .block-content
            %p.empty You have no items in your shopping cart.
  .footer-container
    .footer
      %ul
        %li
          %a{href: "#"} About Us
        %li
          %a{href: "#"} Customer Service
        %li.last.privacy
          %a{href: "#"} Privacy Policy
      %ul.links
        %li.first
          %a{href: "#", title: "Site Map"} Site Map
        %li
          %a{href: "#", title: "Search Terms"} Search Terms
        %li
          %a{href: "#", title: "Orders and Returns"} Orders and Returns
        %li.last
          %a{href: "#", title: "Contact Us"} Contact Us

If I modify

= stylesheet_link_tag "application", media: "all", "data-turbolinks-track" =>  true
to
= stylesheet_link_tag "admin/screen.css", media: "all", "data-turbolinks-track" =>  true
, all styles are lost.

Answer №1

Within one of the templates in your application, add the following code snippet --

<%= stylesheet_link_tag    "admin/screen", :media => "all" %>

And in another template, include --

<%= stylesheet_link_tag    "styles", :media => "all" %>

If you mistakenly bring in the application.css file into both templates, it will import the entire stylesheet tree as shown below --

/*
 *= require_self
 *= require_tree .
*/

This results in all existing stylesheets being loaded unnecessarily. Make sure to specify which stylesheets are needed for your application.

============== UPDATE ==============

For Rails 4 and HAML users, the updated lines should be formatted as follows --

= stylesheet_link_tag "admin/screen", media: "all", "data-turbolinks-track" => true

and

= stylesheet_link_tag "styles", media: "all", "data-turbolinks-track" => true

Ensure that these changes are applied to the appropriate template.

============ ANOTHER UPDATE ===========

If there are additional stylesheets you wish to incorporate into these templates, list them with commas. Refer to the example below --

= stylesheet_link_tag "styles", "another-stylesheet", "and-another-one" media: "all", "data-turbolinks-track" => true

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

Creating a versatile TailwindCSS grid that can adjust to varying numbers of grid columns

I am currently working with Vue3 and TailwindCSS, attempting to create a grid using a dynamic grid-cols-{n} class. While I am aware that TailwindCSS typically supports up to 12 columns by default, the challenge arises when the number of columns needed is e ...

Strategically stacking two Bootstrap columns for perfect alignment

I'm currently having trouble with aligning Bootstrap columns. Can someone assist me, please? <link href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" rel="stylesheet"/> <div class="container"> <di ...

Tips for implementing custom styles on React components that have been imported locally

I'm currently struggling with applying CSS successfully to components imported from an npm library. My main challenge seems to be my use of css-loader in the react starter kit (https://github.com/kriasoft/react-starter-kit) without a full understandin ...

Methods to validate CSS attributes specified within a class using React testing library

I am struggling to validate the CSS properties defined within a class in CSS using the React Testing Library. Unfortunately, I am facing challenges in doing so. Here are the simplified code snippets: import React from "react"; import { render, ...

The Infinite scroll feature in Fuel UX is ineffective when a specific height is not defined for the

In my current project, I am utilizing Bootstrap and Fuel UX v3.4.0 with the goal of implementing Infinite scroll throughout my entire page. Unfortunately, I have encountered difficulties in achieving this implementation. By replicating the infinite scroll ...

What is the procedure for incorporating ajax into Rails 4.0 to perform a basic multiplication function?

Just starting to learn about rails and I have a simple implementation in mind. On the screen, there are two textboxes. In textbox1, I enter a number and upon clicking submit, an ajax request is made. The response should include an HTML template that allows ...

Learn how to incorporate a HTML page into a DIV by selecting an Li element within a menu using the command 'include('menu.html')'

I have a website with both 'guest' and 'user' content. To handle the different menus for logged-in and logged-out users, I created menuIn.html and menuOut.html files. These menus are included in my MainPage.php using PHP logic as sugges ...

Challenges with CSS in Google Chrome web browser (Input field and Submit button)

Having trouble with the alignment of a textbox and button on Chrome, they're not displaying correctly. Here are examples from different browsers; notice how the textbox in Chrome is misaligned. Internet Explorer/Firefox https://i.stack.imgur.com/mf ...

Unraveling the Enigma of CSS Grid Whitespace

I'm facing an issue while trying to construct a grid of images using CSS Grid. Interestingly, I am encountering mysterious white space around the first two items in the grid. Upon inspecting the images, I am unable to identify any source of this white ...

Deleting various classes (jQuery)

Is there a more effective alternative to rewriting the following code snippet? $('element').removeClass('class1').removeClass('class2'); I am unable to utilize removeClass(); because it would eliminate ALL classes, and that ...

Using jQuery to update the CSS class for all li icons except for the one that is currently selected

Utilizing Font Awesome Icons within the li elements of a ul Challenge When a user clicks on the user icon, the color changes from black to yellow. If the user clicks on another icon, that one also turns yellow. Is there a way to remove the existing yell ...

Simple code styling tool

Seeking guidance to create a basic syntax highlighter using JavaScript or ClojureScript. While aware of existing projects like Codemirror and rainbow.js, I'm interested in understanding how they are constructed and looking for a simple example. Do th ...

Using Media Queries to Optimize Image Display for Higher Pixel Densities: @2x, @3x,

My current project involves supporting various pixel ratios on the website I am developing. I want to make sure that I include all necessary browser prefixes to ensure compatibility with a wide range of devices and browsers. While I am using SVGs whenever ...

Picture not showing up when loading iPhone video

My website features a video that is displayed using the following code: <div class="gl-bot-left"> <video controls=""> <source src="https://www.sustainablewestonma.org/wp-content/uploads/2019/09/video.fixgasleaks.mp4" ...

The gap separating the three columns in the DIVs structure

Here is an example that I need The images are being loaded from a MySQL while loop, and I want the spacing between them to be such that the left column and right column touch each side with the middle image centered. Just like in the picture :D This is m ...

Getting an array of all visible text on a page using the same locator in Selenium

Within different sections of the webpage, I have utilized the following locator (excerpt from HTML): <table id="userPlaylistTable" cellspacing="0" cellpadding="0"> <p class="title"> ABC </p> <p class="title"> DEF </p> ...

When I click on .toggle-menu, I want the data-target to have a toggled class and the other divs to expand

Looking to achieve a functionality where clicking on .toggle-menu will toggle a class on the specified data-target element and expand other divs accordingly. jQuery(document).ready(function() { var windowWidth = jQuery(window).width(); if (win ...

Position the spinner in the center of the user's screen

I created my own spinner: '''' #spinner-bg-loading{ position: absolute; left: 50%; top: 25%; width: 80px; height: 80px; margin: -75px 0 0 -75px; border: 16px solid #FFFFFF; border-radius: 50%; border-top: 16px solid #1 ...

Troubleshooting Compatibility Issues: JavaScript Function Works in Chrome but not in Internet

After collaborating with fellow coders to develop info boxes using HTML, CSS, and JavaScript, I have come across an issue with the hover functionality not working properly in Internet Explorer. Interestingly, everything functions flawlessly on Google Chrom ...

Struggling to incorporate jquery and jquery-ujs into Browserify, encountering an error stating Uncaught ReferenceError: jQuery is not defined

I am currently working on a Ruby on Rails project and utilizing Browserify to manage my JavaScript dependencies. However, I keep encountering an error message stating "Uncaught ReferenceError: jQuery is not defined" because jquery-ujs is attempting to call ...