Is there a rationale behind using intricate CSS classes such as page-left-column-container-box-element-header for technical purposes?

What is the reasoning behind using this specific CSS and HTML structure for styling web pages?

<div class="page">
  <div class="page-left-column">
    <div class="page-left-column-container-box">
      <div class="page-left-column-container-box-element-header-wrapper">
         <h2>This is the header!</h2>
      </div>
    </div>
  </div>
</div>

The above code snippet is often accompanied by CSS rules similar to this:

.page-left-column-container-box-element-header-wrapper {
  color: red;
}

But wouldn't it be more efficient to structure the code like this:

<div class="page">
  <div class="left column">
    <div class="container-box">
      <div class="element header-wrapper">
         <h2>This is the header!</h2>
      </div>
    </div>
  </div>
</div>

And accompany it with CSS rules like (not all might be necessary):

.page .left.column .container-box .element.header-wrapper {
  color: red;
}

The latter approach seems more organized and easier to maintain. It allows for the use of specific CSS rules without repeating lengthy class names throughout the code. One downside could be the deep hierarchical dependency that the CSS selectors have, but this could be outweighed by the benefits of cleaner and more manageable code. Could the reason for using longer class names like

page-left-column-container-box-element-header-wrapper
be related to performance concerns? Are there other technical advantages that justify this naming convention, or is it simply a matter of complexity in styling rules?

Answer №1

Those examples of CSS are not the best.

A better approach is to use CSS like:

.header-wrapper

This makes the code more reusable and easier to understand.

If you want to learn more about CSS specificity, check out these links:

It's important to note that while some of the information in these links is valuable, I don't agree with everything, such as the suggestion to never use IDs.

Often, people use inefficient methods simply because they are unaware of better practices.

When it comes to naming conventions, I believe CSS classes & IDs should be concise, preferably under 20 characters and always understandable. For instance:

.float-right, .page-float-r

is better than

.pg-fl-r

It's all about finding a balance between brevity and clarity in your code.

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

Tips for adjusting the size of numbers (e.g. 0, 1,4..) using CSS

I have a paragraph on my website that contains a phone number and an email address within the header section. I have styled them to be the same font-size: small, but for some reason, the phone number appears slightly larger than the email address when view ...

I'm having trouble getting my PrimeNG Calendar component to line up correctly

::ng-deep p-calendar.calendar-control > span > input.p-inputtext { border: 1px solid black; background: #eeeeee; text-align: center !important; } The content is not properly centered. <p-calendar dateFormat="mm/dd/yy&qu ...

section element is not receiving styles from the specified class

Whenever I want to ensure that a class is only used on specific elements, I usually prefix it with the element name. For example, using div.className limits the className styling to just div elements. However, when I tried the same approach with a section ...

Why isn't the button border displaying the color I assigned to it?

After setting a border color to my button, it's not displaying the color when I click on it. Instead, it's showing a different color. How can I resolve this issue? I need some assistance with setting the background of my button to match the imag ...

`Thoughts on Difficulty Attaching Child Elements in JavaScript with appendChild`

I am having trouble with appending some HTML that is being received as a string in a div. For some reason, the appendChild method is not working as expected. Here is my JavaScript code: var doc = document.getElementById("products"); var notes = doc.getEle ...

Library for adjusting the x axis scaling accurately

I need to find a JavaScript chart library that can support lines and zooming for handling a large amount of data. One issue I have encountered with other libraries is scaling the x-axis based on date and time data provided in strings: y=[43,56,34,63....] ...

Smooth transition of an arrow moving in a continuous loop using CSS animations

I am attempting to create a seamless loop of a single arrow within a div. My approach involves using two SVG arrows in such a way that when the top part of the first arrow is hidden, the corresponding section of the second arrow should be displayed. This ...

Resize a container to match the height of either its children or the full height of the window

I'm seeking advice on how to properly use height: 100%. Is there a way to scale a div based on the height of the window and its content simultaneously? I want one to override the other if necessary. Here's an example of standard height 100% css ...

Bring to the front the div altered by a CSS3 animation

Recently, I encountered an issue with a div card that triggers an animation when clicked. The animation involves the card scaling up larger, but the problem arises as its edges get hidden under other cards. To visualize this, take a look at the screenshot ...

What is the best way to toggle the active class on a ul list?

After clicking, the active class remains on the original "li" instead of changing as it should. I've tried modifying the code but haven't been able to find a solution. Can someone please review what I might have missed? It seems like there's ...

Issue encountered while attempting to include a background image in React JS

I encountered an issue when attempting to include a background image in react js. ./src/index.css (./node_modules/css-loader/dist/cjs.js??ref--5-oneOf-4-1!./node_modules/postcss-loader/src??postcss!./src/index.css) Unable to locate module: An attem ...

Make the text within the CSS style of ".well" wrap around the width

I am looking to style the width of a .well class to be in proportion with the text inside a simple textbox that it contains. What is the best approach to achieve this sizing using CSS? ...

Changing CSS attributes with jQuery when conditions are met

After creating menus with expandable items that change style upon clicking, I encountered an issue where the styling changes were not being applied correctly. To address this problem, I followed Sushanth's suggestion and replaced $this with $(this), ...

Create a stylish navigation dropdown with MaterializeCSS

Incorporating the materializecss dropdown menu feature, I encountered an issue where only two out of four dropdown menu items were visible. Here is the HTML code snippet in question: <nav class="white blue-text"> <div class="navbar-wrapper con ...

RequireJs is failing to load a script based on its name

Recently, I delved into the world of RequireJs to enhance my understanding. However, I encountered a hurdle while trying to load a JavaScript dependency using its custom shortened name. Despite my efforts, I can't seem to figure out what I'm doin ...

Using AngularJS and the ng-show directive, you can set a <div> element to

Objective: My aim is to show the content of a div according to the status of checkboxes, while also ensuring that these divs are visible by default If I have this code snippet: <html> <head> <script src="https://ajax.googleapis.com/ajax/li ...

Tips on altering hover effects?

I am having trouble changing the font size and color of the a when hovering over p. I have been trying to figure this out for a while now, but I can't seem to get it to work. If anyone has any simple links related to this topic, I would greatly appre ...

Create an interactive mechanism where one scrollbar dynamically adjusts another scrollbar and vice versa

Using the provided js-bin, how can I synchronize scrolling between the "left" div and the "right" div when using the mouse wheel? Currently, if you uncomment the code block, the scrolling behavior changes from scrolling by 100px per scroll to scrolling pi ...

Obtain the background color of an element using the source attribute in Selenium WebDriver

Understanding the x-path is crucial, such as < img id="" src="/A/A/B.png" style=""> My task involves identifying the color of the image, but unfortunately, the style attribute does not provide any information about color. It only includes details a ...

javax.el.MethodNotFoundException: JSP method cannot be located

While compiling the JSP template, I encountered the following exception: The method getFriendImage() is not recognized I attempted to rebuild the class without success. The src attribute contains a valid link to an image that is functioning properly. ...