Merging various classes to form a unified class

I have an old app built with Bootstrap 3 that heavily uses the well class for styling various elements. However, Bootstrap 5 no longer includes the well class, so I'm looking for a suitable replacement such as 

class="card text-dark text-bg-light mt-2 mb-3 card-body"
.

Manually replacing every instance of well is not ideal, especially since the current replacement might not be perfect. Ideally, I want to define something similar to:

#define well "card text-dark text-bg-light mt-2 mb-3 card-body"

This would allow me to seamlessly transition without modifying the existing HTML. Is there a CSS solution for achieving this? A SASS approach would also be appreciated.

csssass

Answer №1

If you're not keen on creating your own styles from scratch, one potential solution could involve utilizing the extension feature for classes:

.upgrade {
  @extend .card;
  @extend .text-dark;
  @extend .text-bg-light;
  @extend .mt-2;
  @extend .mb-3;
  @extend .card-body;
}

In order for this to function correctly, you must have Bootstrap's styles included in your SCSS file.

Keep in mind that the resulting CSS may be a bit messy as it will add the .well class to every selector extended.

Answer №2

Here's a suggestion for styling your element:

.custom-box {
    color: #333333;
    background-color: #fdfdfd;
    margin-top: 0.5rem;
    margin-bottom: 1rem;
}

This CSS code is similar to the Bootstrap framework. Feel free to experiment with it and adjust as needed.

Answer №3

Give This Code a Shot:


 CSS:
    .panel{
        background-color: #f2f2f2;
        color: #333333;
        margin-top: 0.5rem;
        margin-bottom: 1rem;
        flex: 1 1 auto;
        padding:1em 1em;
    }

 HTML:
 <div class="card panel" style="width: 18rem;">
      <h5 class="card-title">Card title</h5>
      <p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
      <a href="#" class="btn btn-primary">Go somewhere</a>
</div>

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