我有一行包含两列，一列包含图像，另一列包含模态窗口中的用户列表。 当用户向下滚动模态时，将加载更多用户。我希望在模态向下滚动时修复图像。 .html：
<div class="modal fade" id="recognitionModal" tabindex="-1" role="dialog" aria-labelledby="recognitionModalLabel" aria-hidden="true">
<div class="modal-dialog modal-xl modal-dialog-centered" role="document">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title" id="recognitionModalLabel">{% trans 'Lets admire someone today:)' %}</h5>
</div>
<div class="modal-body">
<div class="row">
<div class="col-12 recognition-container" id="recognizeWho">
<div class="row justify-content-center">
<!-- I want this column to be fixed -->
<div class="col-12 col-lg col-xl-6">
<img class="img-fluid" src="{% static 'image/heart.svg' %}" />
</div>
<div class="col-12 col-lg col-xl-4">
<!-- this section also be fixed -->
<div class="form-group">
<div class="input-group input-group-alternative mb-4">
<input class="form-control form-control-alternative" id="chooseColleague" placeholder="Choose your colleague.." type="text">
</div>
</div>
<!-- while this section is scrolling -->
<div>
<div class="who-to-recognize-container mb-2">
<div class="who-to-recognize-row d-flex my-2" user_id="2"><div class="px-3 align-self-center"><div class="media"><span class="avatar avatar-sm rounded-circle bg-white shadow-sm border"><span class="text-dark">a</span> </span> <div class="media-body ml-2"><span class="username mb-0 text-sm font-weight-bold">admin </span> <small class="occupation text-muted d-block">Developer</small></div></div></div><div class="flex-grow-1 align-self-center mt-2"><div class="text-right"><span class="select-row-radio"></span> </div></div></div>
<div class="who-to-recognize-row d-flex my-2" user_id="2"><div class="px-3 align-self-center"><div class="media"><span class="avatar avatar-sm rounded-circle bg-white shadow-sm border"><span class="text-dark">a</span> </span> <div class="media-body ml-2"><span class="username mb-0 text-sm font-weight-bold">admin </span> <small class="occupation text-muted d-block">Developer</small></div></div></div><div class="flex-grow-1 align-self-center mt-2"><div class="text-right"><span class="select-row-radio"></span> </div></div></div>
<div class="who-to-recognize-row d-flex my-2" user_id="2"><div class="px-3 align-self-center"><div class="media"><span class="avatar avatar-sm rounded-circle bg-white shadow-sm border"><span class="text-dark">a</span> </span> <div class="media-body ml-2"><span class="username mb-0 text-sm font-weight-bold">admin </span> <small class="occupation text-muted d-block">Developer</small></div></div></div><div class="flex-grow-1 align-self-center mt-2"><div class="text-right"><span class="select-row-radio"></span> </div></div></div>
<div class="who-to-recognize-row d-flex my-2" user_id="2"><div class="px-3 align-self-center"><div class="media"><span class="avatar avatar-sm rounded-circle bg-white shadow-sm border"><span class="text-dark">a</span> </span> <div class="media-body ml-2"><span class="username mb-0 text-sm font-weight-bold">admin </span> <small class="occupation text-muted d-block">Developer</small></div></div></div><div class="flex-grow-1 align-self-center mt-2"><div class="text-right"><span class="select-row-radio"></span> </div></div></div>
<div class="who-to-recognize-row d-flex my-2" user_id="2"><div class="px-3 align-self-center"><div class="media"><span class="avatar avatar-sm rounded-circle bg-white shadow-sm border"><span class="text-dark">a</span> </span> <div class="media-body ml-2"><span class="username mb-0 text-sm font-weight-bold">admin </span> <small class="occupation text-muted d-block">Developer</small></div></div></div><div class="flex-grow-1 align-self-center mt-2"><div class="text-right"><span class="select-row-radio"></span> </div></div></div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
这是JSFIDDLE链接模态
将此类添加到 img 元素中：
.sticky {
position: -webkit-sticky;
position: sticky;
top: 0;
}