Is it possible to use the same id attribute value for multiple blog posts on Blogger?

Is it possible to use the same id attribute value in multiple posts on a Blogger platform?

For example:

Blogger post 1

<div class="panel-heading" id="myPost">some content</div>

Blogger post 2

<div class="panel-heading" id="myPost">some content</div>

Blogger post 3

<div class="panel-heading" id="myPost">some content</div>

And

Blogger post 6000

<div class="panel-heading" id="myPost">some content</div>

This is what I'm doing because the CSS for myPost exists in the blogger template, not in individual posts.

The CSS is in the template, not in the posts of Blogger

<style> #myPost {background-color: red;} </style>

I am running a dictionary blog and I want to avoid having to change the CSS in every single post. Instead, I prefer to make changes in the Blogger template. When I use the class attribute, my CSS does not work for myPost. However, when I include some content, the code works and changes the background color of panel-heading. Unfortunately, Bootstrap panel-heading does not offer many customizable color options.

htmlcss

Answer №1

Avoid using the same ID multiple times on a webpage as it will prevent you from targeting individual elements with that ID - only the first instance will be recognized.

Some templates may mistakenly repeat the same ID, but this is incorrect. While some templates offer ways to make IDs unique, others do not.

In most cases, classes can be used similarly to IDs without the need for uniqueness. When targeting an element by its class in JavaScript, remember to include [0] after the selector to account for classes returning a collection rather than a string (even if only one element is selected, it is still considered a collection/array).

To alter the panel heading of all posts uniformly:

.panel-heading{background: palegreen;}

If you want to customize each heading separately, consider using something like:

.panel-heading:nth-child(2){background: palegreen;}

For a comprehensive list of CSS color names, refer to this resource.

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