Bootstrap 4 button with img icon

by jorgeluis

HTML

<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
<div class="container">
    <button class="btn btn-block text-left">
        <img class="mr-2" src="https://placehold.it/40" aria-hidden="true" alt=""/>
        Button label
    </button>

    <button class="btn btn-primary btn-block text-left">
        <img class="mr-2" src="https://placehold.it/40" aria-hidden="true" alt=""/>
        Primary button
    </button>

</div>