我無法將圖像與頁面底部對齊。盡管該列的高度相同，但它只是沒有完全對齊到底部。代碼筆： https: //codepen.io/monsmado/pen/WNvmdOL<div class="container">    <div class="row">    <div class="col-sm">        <img src="https://via.placeholder.com/557x347" class="img-fluid">        <h2>Lorum Ipsum</h2>        <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</p>            <div class="d-sm-flex align-self-end">            <a href="#">                <img src="https://via.placeholder.com/31x36">            </a>        </div>    </div>    <div class="col-sm">        <img src="https://via.placeholder.com/557x347" class="img-fluid">        <h2>Lorem ipsum dolor sit amet consectetur</h2>        <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</p>        <div class="d-sm-flex align-self-end">            <a href="#">                <img src="https://via.placeholder.com/31x36">            </a>        </div>    </div>    <div class="col-sm">        <img src="https://via.placeholder.com/557x347" class="img-fluid">        <h2>Lorem ipsum dolor sit amet consectetur</h2>        <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</p>        <div class="d-sm-flex align-self-end">            <a href="#">                <img src="https://via.placeholder.com/31x36"">            </a>        </div>    </div>    </div></div>