How can I set height for Twitter bootstrap thumbnails?

Question

I’m having trouble setting up the Thumbnail module for my personal website. I use twitter bootstrap (3.0) for my project and I can’t finish setting up the Thumbnail module.

The width is okay, but I can’t set the height of thumbnails (I can’t align all thumbnails as the same height).

How I can set one (standard) height for all the thumbnails and zoom/scale image to center so they can fill all space without stretching the image?

<div class="row">
<!-- Thumbnail 0 -->
<div class="col-sm-6 col-md-3">
    <a href="#" class="thumbnail">
        <img src="img.png" alt="...">
    </a>
    <div class="caption">
        <h4>Arctic MX-2, 8g</h4>
    </div>
</div><!-- /thumbnail 0 -->
<!-- Thumbnail 1 -->
<div class="col-sm-6 col-md-3">
    <a href="#" class="thumbnail">
        <img src="blue.png" alt="...">
    </a>
    <div class="caption">
        <h4>Arctic MX-2, 8g</h4>
    </div>
</div><!-- /thumbnail 1 -->
</div><!-- /thumbnail -->

Answer 1

either in css:

.thumbnail img { min-height:50px; height:50px; } // or whatever height you desire

or inline:

<img src="img.png" alt="..." style="min-height:50px;height:50px;" />

Answer 2

Hey I was looking at your question, cause I have had the same problem in Bootstrap where if one of the <div>'s height is higher than the other's, then the grid doesn't display properly. I figured out how to fix the thumbnail align problem, and I think many people could be using the CSS Flex property.

In the div class="row" I added style="display:flex; flex-wrap: wrap;". Basically, my code looks like this:

<div class="row" style="display:flex; flex-wrap: wrap;">
  <div class="col-sm-3">
    <div class="thumbnail">
      <img src="http://lorempixel.com/500/300" style="width:200px">
      <div class="caption">
        <h4>Some thumbnail heading</h4>
      </div>
    </div>
  </div>  
  <div class="col-sm-3">
    <div class="thumbnail">
      <img src="http://lorempixel.com/500/300" style="width:200px">
      <div class="caption">
        <h4>Some thumbnail heading</h4>
      </div>
    </div>
  </div>
  .. any number of thumbnails you want
</div>

So you can have different thumbnail heights and it will display properly, maybe not as jQuery Masonry, but at least better.

Answer 3

With SCSS, you can simply:

@media (min-width: $screen-sm-min) {.thumbnail img { height:100px; }}
@media (min-width: $screen-md-min) {.thumbnail img { height:150px; }}
@media (min-width: $screen-lg-min) {.thumbnail img { height:200px; }}