Modifying Bootstrap image dimensions

I've been working on creating a card div with two images inside: an up arrow and a down arrow.

Everything looks good when the page is in full screen mode, with the images displaying at their full size. However, with Bootstrap's responsive design, as I decrease the page resolution using the developer console in Chrome, the images shrink more and more until they become invisible on smaller devices like mobile phones.

Is there a way to restrict how small the images can become?

Thank you.

<div class='col-11 col-xs-11 col-md-5 col-lg-5' style='background-color:#dfdfdf;border-radius:5px;margin-right:10px;margin-bottom:10px;'>

  <div class='col-2 col-xs-2 col-md-2 col-lg-2'>
      <h4 class='card-header' style='text-align:center;height:100%;'> 
        <img style='height:50%;'src='uparrow' onmouseover=this.src='differentuparrow' onmouseout=this.src='uparrow' border='0'/>
        <br><br>
        <img style='height:50%; src='downarrow' onmouseover=this.src='differentdownarrow' onmouseout=this.src='downarrow' border='0'/>
      </h4>
   </div>

  <div class='col-8 col-xs-8 col-md-8 col-lg-8'>
     <h4 class='card-header' style=''><u>Title</u></h4>
     <div class='card-body' style=''>
       <p class='card-title'>Description</p>
       <p class='card-text' style='display: inline-block; bottom:0;'>Points: 0<br>Replies: 0</p>
     </div>
  </div>

  <div class='col-2 col-xs-2 col-md-2 col-lg-2' style='float:right;'>
     <i class='fa fa-pencil fa-5' aria-hidden='true'> Edit</i>
     <br> <i class='fa fa-trash fa-5' aria-hidden='true'> Delete</i>
  </div>

</div>

https://jsfiddle.net/5a87h3ky/

Due to confidentiality reasons, I had to remove the original image sources.

htmlcssimagebootstrap-4

Answer №1

To establish a minimum size for the image, utilize the min-width: px; property.

By doing so, you can ensure that the image will not decrease in size beyond the specified dimensions.

Answer №2

There are numerous methods to regulate the dimensions of images using CSS or HTML. To manage your arrows, you can utilize min-height, max-height, min-width, and max-width properties.

For instance, to adjust the size of image_arrow_up.jpg, you can apply the following CSS:

<head>
<style>
div {
    max-height: 600px;
    min-height: 400px;
    max-width: 400px;
    min-width: 200px;
}
</style>
</head>

Another approach is to use percentages, although it may not be as precise as min and max dimensions:

<!DOCTYPE html>
<html>
<head>
<style>
html, body {
    height: 100%;
}

img.one {
    height: auto;
    width: auto;
}

img.two {
    height: 50%;
    width: 50%;
}
</style>
</head>
<body>

You can also employ CSS with the image-set function or combine scrset and sizes attributes:

.img {
  background-image: url(examples/images/image-384.jpg);
  background-image: 
    -webkit-image-set(
      url(examples/images/image-384.jpg) 1x,
      url(examples/images/image-768.jpg) 2x,
    );
  background-image: 
    image-set(
      url(examples/images/image-384.jpg) 1x,
      url(examples/images/image-768.jpg) 2x,
    );
}

It is also advisable to ensure that the original image is appropriately sized. For instance, resize the original arrow image for a standard desktop monitor rather than using an oversized arrow that may not scale correctly. Alternatively, you can utilize an image management service like Cloudinary or 3Scale to generate responsive quality images.

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