Use loading placeholders for your components or pages to indicate something may still be loading., check out documentation.
In the example below, we take a typical card component and recreate it with placeholders applied to create a “loading card”. Size and proportions are the same between the two.

Some quick example text to build on the card title and make up the bulk of the card's content.

<div class="row">
<div class="col-md-4 mb-3">
<input type="text" class="form-control" placeholder="Input Box">
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control"placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control" placeholder="Disabled" disabled>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Input Box">
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Disabled" disabled>
</div>
<div class="col-md-4 mb-md-0 mb-3">
<input type="text" class="form-control is-invalid" placeholder="Input Box">
</div>
<div class="col-md-4 mb-md-0 mb-3">
<input type="text" class="form-control is-invalid" placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4">
<input type="text" class="form-control is-invalid" placeholder="Disabled" disabled>
</div>
</div><template>
<div class="row">
<div class="col-md-4 mb-3">
<input type="text" class="form-control" placeholder="Input Box">
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control"placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control" placeholder="Disabled" disabled>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Input Box">
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Disabled" disabled>
</div>
<div class="col-md-4 mb-md-0 mb-3">
<input type="text" class="form-control is-invalid" placeholder="Input Box">
</div>
<div class="col-md-4 mb-md-0 mb-3">
<input type="text" class="form-control is-invalid" placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4">
<input type="text" class="form-control is-invalid" placeholder="Disabled" disabled>
</div>
</div>
</template><template>
<div class="row">
<div class="col-md-4 mb-3">
<input type="text" class="form-control" placeholder="Input Box">
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control"placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control" placeholder="Disabled" disabled>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Input Box">
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Disabled" disabled>
</div>
<div class="col-md-4 mb-md-0 mb-3">
<input type="text" class="form-control is-invalid" placeholder="Input Box">
</div>
<div class="col-md-4 mb-md-0 mb-3">
<input type="text" class="form-control is-invalid" placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4">
<input type="text" class="form-control is-invalid" placeholder="Disabled" disabled>
</div>
</div>
</template><div class="row">
<div class="col-md-4 mb-3">
<input type="text" class="form-control" placeholder="Input Box">
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control"placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control" placeholder="Disabled" disabled>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Input Box">
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Disabled" disabled>
</div>
<div class="col-md-4 mb-md-0 mb-3">
<input type="text" class="form-control is-invalid" placeholder="Input Box">
</div>
<div class="col-md-4 mb-md-0 mb-3">
<input type="text" class="form-control is-invalid" placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4">
<input type="text" class="form-control is-invalid" placeholder="Disabled" disabled>
</div>
</div>By default, the Placeholder uses currentColor. This can be overridden with a custom color or utility class.
<div class="row">
<div class="col-md-4 mb-3">
<input type="text" class="form-control" placeholder="Input Box">
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control"placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control" placeholder="Disabled" disabled>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Input Box">
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Disabled" disabled>
</div>
<div class="col-md-4 mb-md-0 mb-3">
<input type="text" class="form-control is-invalid" placeholder="Input Box">
</div>
<div class="col-md-4 mb-md-0 mb-3">
<input type="text" class="form-control is-invalid" placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4">
<input type="text" class="form-control is-invalid" placeholder="Disabled" disabled>
</div>
</div><template>
<div class="row">
<div class="col-md-4 mb-3">
<input type="text" class="form-control" placeholder="Input Box">
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control"placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control" placeholder="Disabled" disabled>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Input Box">
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Disabled" disabled>
</div>
<div class="col-md-4 mb-md-0 mb-3">
<input type="text" class="form-control is-invalid" placeholder="Input Box">
</div>
<div class="col-md-4 mb-md-0 mb-3">
<input type="text" class="form-control is-invalid" placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4">
<input type="text" class="form-control is-invalid" placeholder="Disabled" disabled>
</div>
</div>
</template><template>
<div class="row">
<div class="col-md-4 mb-3">
<input type="text" class="form-control" placeholder="Input Box">
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control"placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control" placeholder="Disabled" disabled>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Input Box">
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Disabled" disabled>
</div>
<div class="col-md-4 mb-md-0 mb-3">
<input type="text" class="form-control is-invalid" placeholder="Input Box">
</div>
<div class="col-md-4 mb-md-0 mb-3">
<input type="text" class="form-control is-invalid" placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4">
<input type="text" class="form-control is-invalid" placeholder="Disabled" disabled>
</div>
</div>
</template><div class="row">
<div class="col-md-4 mb-3">
<input type="text" class="form-control" placeholder="Input Box">
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control"placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control" placeholder="Disabled" disabled>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Input Box">
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Disabled" disabled>
</div>
<div class="col-md-4 mb-md-0 mb-3">
<input type="text" class="form-control is-invalid" placeholder="Input Box">
</div>
<div class="col-md-4 mb-md-0 mb-3">
<input type="text" class="form-control is-invalid" placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4">
<input type="text" class="form-control is-invalid" placeholder="Disabled" disabled>
</div>
</div>The size of Placeholders are based on the typographic style of the parent element. Customize them with sizing props: lg, sm, or xs.
<div class="row">
<div class="col-md-4 mb-3">
<input type="text" class="form-control" placeholder="Input Box">
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control"placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control" placeholder="Disabled" disabled>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Input Box">
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Disabled" disabled>
</div>
<div class="col-md-4 mb-md-0 mb-3">
<input type="text" class="form-control is-invalid" placeholder="Input Box">
</div>
<div class="col-md-4 mb-md-0 mb-3">
<input type="text" class="form-control is-invalid" placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4">
<input type="text" class="form-control is-invalid" placeholder="Disabled" disabled>
</div>
</div><template>
<div class="row">
<div class="col-md-4 mb-3">
<input type="text" class="form-control" placeholder="Input Box">
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control"placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control" placeholder="Disabled" disabled>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Input Box">
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Disabled" disabled>
</div>
<div class="col-md-4 mb-md-0 mb-3">
<input type="text" class="form-control is-invalid" placeholder="Input Box">
</div>
<div class="col-md-4 mb-md-0 mb-3">
<input type="text" class="form-control is-invalid" placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4">
<input type="text" class="form-control is-invalid" placeholder="Disabled" disabled>
</div>
</div>
</template><template>
<div class="row">
<div class="col-md-4 mb-3">
<input type="text" class="form-control" placeholder="Input Box">
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control"placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control" placeholder="Disabled" disabled>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Input Box">
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Disabled" disabled>
</div>
<div class="col-md-4 mb-md-0 mb-3">
<input type="text" class="form-control is-invalid" placeholder="Input Box">
</div>
<div class="col-md-4 mb-md-0 mb-3">
<input type="text" class="form-control is-invalid" placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4">
<input type="text" class="form-control is-invalid" placeholder="Disabled" disabled>
</div>
</div>
</template><div class="row">
<div class="col-md-4 mb-3">
<input type="text" class="form-control" placeholder="Input Box">
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control"placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control" placeholder="Disabled" disabled>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Input Box">
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Disabled" disabled>
</div>
<div class="col-md-4 mb-md-0 mb-3">
<input type="text" class="form-control is-invalid" placeholder="Input Box">
</div>
<div class="col-md-4 mb-md-0 mb-3">
<input type="text" class="form-control is-invalid" placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4">
<input type="text" class="form-control is-invalid" placeholder="Disabled" disabled>
</div>
</div>Animate placeholders by setting the prop animation to glow or wave to better convey the perception of something being actively loaded.
<div class="row">
<div class="col-md-4 mb-3">
<input type="text" class="form-control" placeholder="Input Box">
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control"placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control" placeholder="Disabled" disabled>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Input Box">
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Disabled" disabled>
</div>
<div class="col-md-4 mb-md-0 mb-3">
<input type="text" class="form-control is-invalid" placeholder="Input Box">
</div>
<div class="col-md-4 mb-md-0 mb-3">
<input type="text" class="form-control is-invalid" placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4">
<input type="text" class="form-control is-invalid" placeholder="Disabled" disabled>
</div>
</div><template>
<div class="row">
<div class="col-md-4 mb-3">
<input type="text" class="form-control" placeholder="Input Box">
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control"placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control" placeholder="Disabled" disabled>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Input Box">
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Disabled" disabled>
</div>
<div class="col-md-4 mb-md-0 mb-3">
<input type="text" class="form-control is-invalid" placeholder="Input Box">
</div>
<div class="col-md-4 mb-md-0 mb-3">
<input type="text" class="form-control is-invalid" placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4">
<input type="text" class="form-control is-invalid" placeholder="Disabled" disabled>
</div>
</div>
</template><template>
<div class="row">
<div class="col-md-4 mb-3">
<input type="text" class="form-control" placeholder="Input Box">
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control"placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control" placeholder="Disabled" disabled>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Input Box">
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Disabled" disabled>
</div>
<div class="col-md-4 mb-md-0 mb-3">
<input type="text" class="form-control is-invalid" placeholder="Input Box">
</div>
<div class="col-md-4 mb-md-0 mb-3">
<input type="text" class="form-control is-invalid" placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4">
<input type="text" class="form-control is-invalid" placeholder="Disabled" disabled>
</div>
</div>
</template><div class="row">
<div class="col-md-4 mb-3">
<input type="text" class="form-control" placeholder="Input Box">
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control"placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control" placeholder="Disabled" disabled>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Input Box">
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4 mb-3">
<input type="text" class="form-control is-valid" placeholder="Disabled" disabled>
</div>
<div class="col-md-4 mb-md-0 mb-3">
<input type="text" class="form-control is-invalid" placeholder="Input Box">
</div>
<div class="col-md-4 mb-md-0 mb-3">
<input type="text" class="form-control is-invalid" placeholder="Readonly" value="Readonly" readonly>
</div>
<div class="col-md-4">
<input type="text" class="form-control is-invalid" placeholder="Disabled" disabled>
</div>
</div>