Adjusting the color of a Bootstrap card's header

I've been struggling with customizing the colors of a bootstrap card header in my application. Here's what I have so far: https://i.sstatic.net/Lv1jk.png

Currently, the code I'm using looks like this:

<div class="card">
      <div class="card-header card-header-warning">
           <h4 class="card-title">Blah blah</h4>
      </div>

      <div class="card-body">
      </div>
</div>

But instead of sticking to the predefined bootstrap colors (like primary, warning, success...), I want to use custom colors such as cyan or bordeaux (in RGB or HEX format, not from bootstrap).

Any suggestions on how I can achieve this? I tried adding an ID to the div like this:

<div class="card-header card-header-warning" id="card-header-color">

In my CSS file, I added the following:

#card-header-color {
   background-color: cyan;
}

Unfortunately, this didn't change anything for me. I also tried removing the "card-header-warning" part, but then all styling disappeared too (refer to the image). I just need a way to alter the color without losing the existing header styles. https://i.sstatic.net/LgKxc.png

Your help would be greatly appreciated!

htmlcssangularbootstrap-4

Answer №1

  1. Ensure that your css file is linked after the bootstrap css file in the head tag
  2. Attempt using this syntax 
    .card > .card-header-warning{background: cyan}
    is the issue persisting?
  3. Confirm that your code snippet is placed at the bottom of the style sheet is the issue still present?
  4. Consider implementing a forced override with 
    .card-header-warning{background: cyan!important}

Answer №2

If you want to change the color specifically, consider using the !important rule.

Your code would look something like this:

#card-header-color {
   background-color: magenta !important;
}

Additionally, your HTML element would be modified to:

<div class="card-header card-header-warning" id="card-header-color">

Answer №3

One way to override CSS styles is by utilizing the !important property.

#card-header-color {
   background-color: cyan !important;
}

Answer №4

Avoid using IDs to style components as it is not considered good practice.

Instead, you can simply apply the desired text color by using text-white. Here's an example of how your HTML code would look:

<div class="card">
      <div class="card-header card-header-color">
           <h4 class="card-title text-white">Blah blah</h4>
      </div>

      <div class="card-body">
      </div>
</div>

In order to set the background color for the header, you can use the following CSS:

.card-header-color {
  background-color: cyan;
}

Referencing the bootstrap documentation, you can also utilize predefined styles for cards. Here's an example of a blue info card:

<div class="card text-white bg-info">
  <div class="card-header">Header</div>
  <div class="card-body">
    <h5 class="card-title">Info 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>
  </div>
</div>

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