CSS: width is functional but height is ineffective

When trying to adjust the width of a div, everything works smoothly, but the same cannot be said for adjusting the height.

I attempted to experiment with the bootstrap carousel on codeply, but unfortunately, it didn't behave as anticipated:

HTML code:

<div id="carouselExampleSlidesOnly" class="carousel slide" data-bs-ride="carousel">
    <div class="carousel-inner">
      <div class="carousel-item active">
        <img src="..." class="d-block w-100" alt="..." style="background-color: red;">
      </div>
      <div class="carousel-item">
        <img src="..." class="d-block w-100" alt="..." style="background-color: yellow;">
      </div>
      <div class="carousel-item">
        <img src="..." class="d-block w-100" alt="..." style="background-color: blue;">
      </div>
    </div>
</div>

CSS code:

.carousel-item{
    height: 500px;
    width: 300px; }

The width changes, but the height remains unaffected.

htmlcssbootstrap-5

Answer №1

Make sure to include the image element inside the .carousel-item img class. Your styles will be applied to the carousel item and will be reflected in the styles.

edit

It was necessary to remove the w-100 class from the image as it was causing conflicts with the custom width CSS.

.carousel-item img{
    height: 500px;
    width: 300px; 
}
<script src="https://cdn.jsdelivr.net/npm/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="30525f5f44434442514070051e001e02">[email protected]</a>/dist/js/bootstrap.min.js"></script>
<link href="https://cdn.jsdelivr.net/npm/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="25474a4a51565157445565100b150b17">[email protected]</a>/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">

<div id="carouselExampleSlidesOnly" class="carousel slide" data-bs-ride="carousel">
<div class="carousel-inner">
  <div class="carousel-item active">
    <img src="..." class="d-block" alt="..." style="background-color: red;">
  </div>
  <div class="carousel-item">
    <img src="..." class="d-block" alt="..." style="background-color: yellow;">
  </div>
  <div class="carousel-item">
    <img src="..." class="d-block" alt="..." style="background-color: blue;">
  </div>
</div>
</div>

Answer №2

In order to adjust the height, focus on making changes solely to the height value while keeping the width as either auto or unset.

.carousel-item {
    height: 600px;
    width: auto;
}

Answer №3

After examining the code you shared, it appears that you have included the w-100 class. This specific class within Bootstrap is designed to set the width to 100% with high importance. Although in your CSS file you have specified a fixed width of 300px, the presence of the w-100 class will override this and enforce a width equal to 100% of the image's width. The height, as defined in the CSS file, will remain at 500px.

Consequently, the dimensions of your image will be: width = 100%; height = 500px;

It is worth noting that due to the inclusion of the d-block class, the width will already be set to 100% of the image's width, making the w-100 class function similarly to the d-block class.

If you are considering using slick-slider instead of Bootstrap, you can refer to this helpful answer on creating a draggable carousel/slider: carousel/slider

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