153 lines
5.8 KiB
Markdown
153 lines
5.8 KiB
Markdown
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---
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layout: docs
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title: Form controls
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description: Give textual form controls like `<input>`s and `<textarea>`s an upgrade with custom styles, sizing, focus states, and more.
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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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{{< example >}}
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<div class="mb-3">
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<label for="exampleFormControlInput1" class="form-label">Email address</label>
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<input type="email" class="form-control" id="exampleFormControlInput1" placeholder="name@example.com">
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</div>
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<div class="mb-3">
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<label for="exampleFormControlTextarea1" class="form-label">Example textarea</label>
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<textarea class="form-control" id="exampleFormControlTextarea1" rows="3"></textarea>
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</div>
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{{< /example >}}
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## Sizing
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Set heights using classes like `.form-control-lg` and `.form-control-sm`.
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{{< example >}}
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<input class="form-control form-control-lg" type="text" placeholder=".form-control-lg" aria-label=".form-control-lg example">
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<input class="form-control" type="text" placeholder="Default input" aria-label="default input example">
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<input class="form-control form-control-sm" type="text" placeholder=".form-control-sm" aria-label=".form-control-sm example">
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{{< /example >}}
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## Disabled
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Add the `disabled` boolean attribute on an input to give it a grayed out appearance, remove pointer events, and prevent focusing.
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{{< example >}}
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<input class="form-control" type="text" placeholder="Disabled input" aria-label="Disabled input example" disabled>
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<input class="form-control" type="text" value="Disabled readonly input" aria-label="Disabled input example" disabled readonly>
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{{< /example >}}
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## Readonly
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Add the `readonly` boolean attribute on an input to prevent modification of the input's value. `readonly` inputs can still be focused and selected, while `disabled` inputs cannot.
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{{< example >}}
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<input class="form-control" type="text" value="Readonly input here..." aria-label="readonly input example" readonly>
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{{< /example >}}
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## Readonly plain text
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If you want to have `<input readonly>` elements in your form styled as plain text, replace `.form-control` with `.form-control-plaintext` to remove the default form field styling and preserve the correct `margin` and `padding`.
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{{< example >}}
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<div class="mb-3 row">
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<label for="staticEmail" class="col-sm-2 col-form-label">Email</label>
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<div class="col-sm-10">
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<input type="text" readonly class="form-control-plaintext" id="staticEmail" value="email@example.com">
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</div>
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</div>
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<div class="mb-3 row">
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<label for="inputPassword" class="col-sm-2 col-form-label">Password</label>
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<div class="col-sm-10">
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<input type="password" class="form-control" id="inputPassword">
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</div>
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</div>
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{{< /example >}}
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{{< example >}}
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<form class="row g-3">
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<div class="col-auto">
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<label for="staticEmail2" class="visually-hidden">Email</label>
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<input type="text" readonly class="form-control-plaintext" id="staticEmail2" value="email@example.com">
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</div>
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<div class="col-auto">
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<label for="inputPassword2" class="visually-hidden">Password</label>
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<input type="password" class="form-control" id="inputPassword2" placeholder="Password">
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</div>
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<div class="col-auto">
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<button type="submit" class="btn btn-primary mb-3">Confirm identity</button>
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</div>
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</form>
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{{< /example >}}
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## File input
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{{< example >}}
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<div class="mb-3">
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<label for="formFile" class="form-label">Default file input example</label>
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<input class="form-control" type="file" id="formFile">
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</div>
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<div class="mb-3">
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<label for="formFileMultiple" class="form-label">Multiple files input example</label>
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<input class="form-control" type="file" id="formFileMultiple" multiple>
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</div>
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<div class="mb-3">
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<label for="formFileDisabled" class="form-label">Disabled file input example</label>
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<input class="form-control" type="file" id="formFileDisabled" disabled>
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</div>
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<div class="mb-3">
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<label for="formFileSm" class="form-label">Small file input example</label>
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<input class="form-control form-control-sm" id="formFileSm" type="file">
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</div>
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<div>
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<label for="formFileLg" class="form-label">Large file input example</label>
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<input class="form-control form-control-lg" id="formFileLg" type="file">
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</div>
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{{< /example >}}
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## Color
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Set the `type="color"` and add `.form-control-color` to the `<input>`. We use the modifier class to set fixed `height`s and override some inconsistencies between browsers.
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{{< example >}}
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<label for="exampleColorInput" class="form-label">Color picker</label>
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<input type="color" class="form-control form-control-color" id="exampleColorInput" value="#563d7c" title="Choose your color">
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{{< /example >}}
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## Datalists
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Datalists allow you to create a group of `<option>`s that can be accessed (and autocompleted) from within an `<input>`. These are similar to `<select>` elements, but come with more menu styling limitations and differences. While most browsers and operating systems include some support for `<datalist>` elements, their styling is inconsistent at best.
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Learn more about [support for datalist elements](https://caniuse.com/datalist).
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{{< example >}}
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<label for="exampleDataList" class="form-label">Datalist example</label>
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<input class="form-control" list="datalistOptions" id="exampleDataList" placeholder="Type to search...">
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<datalist id="datalistOptions">
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<option value="San Francisco">
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<option value="New York">
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<option value="Seattle">
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<option value="Los Angeles">
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<option value="Chicago">
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</datalist>
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{{< /example >}}
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## Sass
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### Variables
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`$input-*` are shared across most of our form controls (and not buttons).
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{{< scss-docs name="form-input-variables" file="scss/_variables.scss" >}}
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`$form-label-*` and `$form-text-*` are for our `<label>`s and `.form-text` component.
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{{< scss-docs name="form-label-variables" file="scss/_variables.scss" >}}
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{{< scss-docs name="form-text-variables" file="scss/_variables.scss" >}}
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`$form-file-*` are for file input.
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{{< scss-docs name="form-file-variables" file="scss/_variables.scss" >}}
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