Bootstrap 4 'text-truncate' class positions the text below - html

Question

I try to adding an ellipsis on title if it's too long. I want respect the responsive layout and I don't want adding fix width to card-title.
I use text-truncate to add ellipsis on card title.
Cards are in column to use image at left of text.
<div class="container">
<div class="row">
#foreach($posts as $post)
<div class="col-lg-6 p-1">
<div class="card border-0">
<div class="row no-gutters">
<div class="col-auto">
<img src="{{ $post->featured_image ? $post->featured_image : '/images/placeholder-image.png' }}" class="img-fluid" width="150" height="150" alt="{{ $post->title }}" style="width: 150px; height: 150px; object-fit: cover;">
</div>
<div class="col">
<div class="card-body">
<h3 class="card-title text-truncate">{{ $post->title }}</h3>
<p class="card-text m-0">{{ $post->short_summary }}</p>
<small>{{ $post->published_at->format('M d') }} — {{ $post->read_time }}</small>
</div>
</div>
</div>
</div>
</div>
#endforeach
</div>
</div>
But if I add text-truncate class, the title and content are down.

Answer 1

You're missing overflow: hidden; on <div class="col">. The content will always take its full width if you do not set the overflow of its parent container to hidden when using flexbox.
.col-special {
overflow: hidden;
}
<link href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet"/>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js"></script>
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js"></script>
<div class="container">
<div class="row">
<div class="col-lg-6 p-1">
<div class="card border-0">
<div class="row no-gutters">
<div class="col-auto">
<img src="https://via.placeholder.com/150x150" class="img-fluid" width="150" height="150" alt="{{ $post->title }}" style="object-fit: cover;">
</div>
<div class="col col-special">
<div class="card-body">
<h3 class="card-title text-truncate">Comment écrire une "story" complète ?</h3>
<p class="card-text m-0">Une story, c'est en faite, simplement une histoire qui racoute ce que vous voule...</p>
<small>Apr 07 — 1 min read</small>
</div>
</div>
</div>
</div>
</div>
</div>
</div>

Answer 2

Use flex-nowrap on the inner row. This will prevent the col & col-auto from wrapping.
<div class="col-lg-6 p-1">
<div class="card border-0">
<div class="row no-gutters flex-nowrap">
<div class="col-auto">
<img src="//placehold.it/400" class="img-fluid" width="150" height="150" alt="" style="width: 150px; height: 150px; object-fit: cover;">
</div>
<div class="col">
<div class="card-body">
<h3 class="card-title text-truncate">title is longer</h3>
<p class="card-text m-0">summary</p>
<small>read time</small>
</div>
</div>
</div>
</div>
</div>
https://www.codeply.com/go/szhxXTLETa

Answer 3

<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet"/>
<div class="container">
<div class="card">
<div class="row no-gutters">
<div class="col-2">
<img src="//placehold.it/200" class="img-fluid" alt="">
</div>
<div class="col-4">
<div class="card-block px-2">
<h4 class="card-title text-truncate">Title</h4>
<p class="card-text text-truncate">Description</p>
</div>
</div>
<div class="col-2">
<img src="//placehold.it/200" class="img-fluid" alt="">
</div>
<div class="col-4">
<div class="card-block px-2">
<h4 class="card-title text-truncate">Title long textlong textlong textlong text</h4>
<p class="card-text text-truncate">long textlong textlong textlong textlong text</p>
</div>
</div>
</div>
</div>
</div>