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Bootstrap/site/content/docs/5.1/forms/floating-labels.md
Sebastian Podjasek 0853778eba
Support floating labels on .form-control-plaintext (#32840)
* Support floating labels on `.form-control-plaintext`

* Update floating-labels.md

* Apply suggestions from code review

Co-authored-by: XhmikosR <xhmikosr@gmail.com>
Co-authored-by: Mark Otto <otto@github.com>
2022-02-08 12:38:29 -08:00

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Markdown

---
layout: docs
title: Floating labels
description: Create beautifully simple form labels that float over your input fields.
group: forms
toc: true
---
## Example
Wrap a pair of `<input class="form-control">` and `<label>` elements in `.form-floating` to enable floating labels with Bootstrap's textual form fields. A `placeholder` is required on each `<input>` as our method of CSS-only floating labels uses the `:placeholder-shown` pseudo-element. Also note that the `<input>` must come first so we can utilize a sibling selector (e.g., `~`).
{{< example >}}
<div class="form-floating mb-3">
<input type="email" class="form-control" id="floatingInput" placeholder="name@example.com">
<label for="floatingInput">Email address</label>
</div>
<div class="form-floating">
<input type="password" class="form-control" id="floatingPassword" placeholder="Password">
<label for="floatingPassword">Password</label>
</div>
{{< /example >}}
When there's a `value` already defined, `<label>`s will automatically adjust to their floated position.
{{< example >}}
<form class="form-floating">
<input type="email" class="form-control" id="floatingInputValue" placeholder="name@example.com" value="test@example.com">
<label for="floatingInputValue">Input with value</label>
</form>
{{< /example >}}
Form validation styles also work as expected.
{{< example >}}
<form class="form-floating">
<input type="email" class="form-control is-invalid" id="floatingInputInvalid" placeholder="name@example.com" value="test@example.com">
<label for="floatingInputInvalid">Invalid input</label>
</form>
{{< /example >}}
## Textareas
By default, `<textarea>`s with `.form-control` will be the same height as `<input>`s.
{{< example >}}
<div class="form-floating">
<textarea class="form-control" placeholder="Leave a comment here" id="floatingTextarea"></textarea>
<label for="floatingTextarea">Comments</label>
</div>
{{< /example >}}
To set a custom height on your `<textarea>`, do not use the `rows` attribute. Instead, set an explicit `height` (either inline or via custom CSS).
{{< example >}}
<div class="form-floating">
<textarea class="form-control" placeholder="Leave a comment here" id="floatingTextarea2" style="height: 100px"></textarea>
<label for="floatingTextarea2">Comments</label>
</div>
{{< /example >}}
## Selects
Other than `.form-control`, floating labels are only available on `.form-select`s. They work in the same way, but unlike `<input>`s, they'll always show the `<label>` in its floated state. **Selects with `size` and `multiple` are not supported.**
{{< example >}}
<div class="form-floating">
<select class="form-select" id="floatingSelect" aria-label="Floating label select example">
<option selected>Open this select menu</option>
<option value="1">One</option>
<option value="2">Two</option>
<option value="3">Three</option>
</select>
<label for="floatingSelect">Works with selects</label>
</div>
{{< /example >}}
## Readonly plaintext
Floating labels also support `.form-control-plaintext`, which can be helpful for toggling from an editable `<input>` to a plaintext value without affecting the page layout.
{{< example >}}
<div class="form-floating mb-3">
<input type="email" readonly class="form-control-plaintext" id="floatingEmptyPlaintextInput" placeholder="name@example.com">
<label for="floatingEmptyPlaintextInput">Empty input</label>
</div>
<div class="form-floating mb-3">
<input type="email" readonly class="form-control-plaintext" id="floatingPlaintextInput" placeholder="name@example.com" value="name@example.com">
<label for="floatingPlaintextInput">Input with value</label>
</div>
{{< /example >}}
## Layout
When working with the Bootstrap grid system, be sure to place form elements within column classes.
{{< example >}}
<div class="row g-2">
<div class="col-md">
<div class="form-floating">
<input type="email" class="form-control" id="floatingInputGrid" placeholder="name@example.com" value="mdo@example.com">
<label for="floatingInputGrid">Email address</label>
</div>
</div>
<div class="col-md">
<div class="form-floating">
<select class="form-select" id="floatingSelectGrid">
<option selected>Open this select menu</option>
<option value="1">One</option>
<option value="2">Two</option>
<option value="3">Three</option>
</select>
<label for="floatingSelectGrid">Works with selects</label>
</div>
</div>
</div>
{{< /example >}}
## Sass
### Variables
{{< scss-docs name="form-floating-variables" file="scss/_variables.scss" >}}