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While it is understood that this is just an example, the visible text (label) of "Works with selects" and the `aria-label="Floating label select example"` created a [WCAG 2.5.3 Label in name](https://www.w3.org/WAI/WCAG21/quickref/#label-in-name) failure. As the `aria-label` isn't necessary here since this `select` is already provided an accessible name by its `label` element, removing the unnecessary `aria-label` seems the best course of action as: * removing it solves the WCAG issue * it removes the potential implication to developers that they'd even _need_ an `aria-label` here, let alone indirectly suggesting that it's ok for the visible text and accessible name to be out of alignment
109 lines
3.8 KiB
Markdown
109 lines
3.8 KiB
Markdown
---
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layout: docs
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title: Floating labels
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description: Create beautifully simple form labels that float over your input fields.
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group: forms
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toc: true
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---
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## Example
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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., `~`).
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{{< example >}}
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<div class="form-floating mb-3">
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<input type="email" class="form-control" id="floatingInput" placeholder="name@example.com">
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<label for="floatingInput">Email address</label>
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</div>
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<div class="form-floating">
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<input type="password" class="form-control" id="floatingPassword" placeholder="Password">
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<label for="floatingPassword">Password</label>
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</div>
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{{< /example >}}
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When there's a `value` already defined, `<label>`s will automatically adjust to their floated position.
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{{< example >}}
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<form class="form-floating">
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<input type="email" class="form-control" id="floatingInputValue" placeholder="name@example.com" value="test@example.com">
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<label for="floatingInputValue">Input with value</label>
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</form>
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{{< /example >}}
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Form validation styles also work as expected.
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{{< example >}}
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<form class="form-floating">
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<input type="email" class="form-control is-invalid" id="floatingInputInvalid" placeholder="name@example.com" value="test@example.com">
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<label for="floatingInputInvalid">Invalid input</label>
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</form>
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{{< /example >}}
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## Textareas
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By default, `<textarea>`s with `.form-control` will be the same height as `<input>`s.
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{{< example >}}
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<div class="form-floating">
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<textarea class="form-control" placeholder="Leave a comment here" id="floatingTextarea"></textarea>
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<label for="floatingTextarea">Comments</label>
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</div>
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{{< /example >}}
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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).
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{{< example >}}
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<div class="form-floating">
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<textarea class="form-control" placeholder="Leave a comment here" id="floatingTextarea2" style="height: 100px"></textarea>
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<label for="floatingTextarea2">Comments</label>
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</div>
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{{< /example >}}
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## Selects
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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.**
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{{< example >}}
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<div class="form-floating">
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<select class="form-select" id="floatingSelect" aria-label="Floating label select example">
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<option selected>Open this select menu</option>
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<option value="1">One</option>
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<option value="2">Two</option>
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<option value="3">Three</option>
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</select>
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<label for="floatingSelect">Works with selects</label>
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</div>
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{{< /example >}}
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## Layout
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When working with the Bootstrap grid system, be sure to place form elements within column classes.
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{{< example >}}
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<div class="row g-2">
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<div class="col-md">
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<div class="form-floating">
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<input type="email" class="form-control" id="floatingInputGrid" placeholder="name@example.com" value="mdo@example.com">
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<label for="floatingInputGrid">Email address</label>
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</div>
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</div>
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<div class="col-md">
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<div class="form-floating">
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<select class="form-select" id="floatingSelectGrid">
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<option selected>Open this select menu</option>
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<option value="1">One</option>
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<option value="2">Two</option>
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<option value="3">Three</option>
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</select>
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<label for="floatingSelectGrid">Works with selects</label>
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</div>
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</div>
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</div>
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{{< /example >}}
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## Sass
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### Variables
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{{< scss-docs name="form-floating-variables" file="scss/_variables.scss" >}}
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