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`aria-haspopup` use requires the use of an ARIA `menu`, `listbox`, `tree`, `grid` or `dialog` (see https://www.w3.org/TR/wai-aria-1.1/#aria-haspopup) in our use (as generic disclosure widgets), it's incorrect and sets up the wrong assumption/behavior from assistive technologies. in future, we likely want to change our dropdowns to essentially be like a `dialog` - move focus to it when opened, possibly make it modal so focus is maintained inside it and the rest of the page is hidden/inert. but for now, removing the incorrect attribute is probably the quickest, most immediate fix.
376 lines
14 KiB
Markdown
376 lines
14 KiB
Markdown
---
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layout: docs
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title: Input group
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description: Easily extend form controls by adding text, buttons, or button groups on either side of textual inputs, custom selects, and custom file inputs.
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group: components
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toc: true
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---
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## Basic example
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Place one add-on or button on either side of an input. You may also place one on both sides of an input. Remember to place `<label>`s outside the input group.
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{% capture example %}
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<div class="input-group mb-3">
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<div class="input-group-prepend">
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<span class="input-group-text" id="basic-addon1">@</span>
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</div>
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<input type="text" class="form-control" placeholder="Username" aria-label="Username" aria-describedby="basic-addon1">
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</div>
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<div class="input-group mb-3">
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<input type="text" class="form-control" placeholder="Recipient's username" aria-label="Recipient's username" aria-describedby="basic-addon2">
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<div class="input-group-append">
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<span class="input-group-text" id="basic-addon2">@example.com</span>
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</div>
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</div>
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<label for="basic-url">Your vanity URL</label>
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<div class="input-group mb-3">
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<div class="input-group-prepend">
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<span class="input-group-text" id="basic-addon3">https://example.com/users/</span>
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</div>
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<input type="text" class="form-control" id="basic-url" aria-describedby="basic-addon3">
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</div>
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<div class="input-group mb-3">
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<div class="input-group-prepend">
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<span class="input-group-text">$</span>
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</div>
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<input type="text" class="form-control" aria-label="Amount (to the nearest dollar)">
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<div class="input-group-append">
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<span class="input-group-text">.00</span>
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</div>
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</div>
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<div class="input-group">
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<div class="input-group-prepend">
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<span class="input-group-text">With textarea</span>
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</div>
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<textarea class="form-control" aria-label="With textarea"></textarea>
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</div>
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{% endcapture %}
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{% include example.html content=example %}
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## Wrapping
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Input groups wrap by default via `flex-wrap: wrap` in order to accommodate custom form field validation within an input group. You may disable this with `.flex-nowrap`.
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{% capture example %}
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<div class="input-group flex-nowrap">
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<div class="input-group-prepend">
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<span class="input-group-text" id="addon-wrapping">@</span>
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</div>
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<input type="text" class="form-control" placeholder="Username" aria-label="Username" aria-describedby="addon-wrapping">
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</div>
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{% endcapture %}
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{% include example.html content=example %}
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## Sizing
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Add the relative form sizing classes to the `.input-group` itself and contents within will automatically resize—no need for repeating the form control size classes on each element.
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**Sizing on the individual input group elements isn't supported.**
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{% capture example %}
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<div class="input-group input-group-sm mb-3">
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<div class="input-group-prepend">
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<span class="input-group-text" id="inputGroup-sizing-sm">Small</span>
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</div>
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<input type="text" class="form-control" aria-label="Sizing example input" aria-describedby="inputGroup-sizing-sm">
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</div>
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<div class="input-group mb-3">
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<div class="input-group-prepend">
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<span class="input-group-text" id="inputGroup-sizing-default">Default</span>
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</div>
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<input type="text" class="form-control" aria-label="Sizing example input" aria-describedby="inputGroup-sizing-default">
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</div>
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<div class="input-group input-group-lg">
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<div class="input-group-prepend">
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<span class="input-group-text" id="inputGroup-sizing-lg">Large</span>
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</div>
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<input type="text" class="form-control" aria-label="Sizing example input" aria-describedby="inputGroup-sizing-lg">
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</div>
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{% endcapture %}
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{% include example.html content=example %}
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## Checkboxes and radios
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Place any checkbox or radio option within an input group's addon instead of text.
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{% capture example %}
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<div class="input-group mb-3">
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<div class="input-group-prepend">
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<div class="input-group-text">
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<input type="checkbox" aria-label="Checkbox for following text input">
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</div>
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</div>
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<input type="text" class="form-control" aria-label="Text input with checkbox">
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</div>
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<div class="input-group">
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<div class="input-group-prepend">
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<div class="input-group-text">
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<input type="radio" aria-label="Radio button for following text input">
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</div>
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</div>
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<input type="text" class="form-control" aria-label="Text input with radio button">
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</div>
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{% endcapture %}
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{% include example.html content=example %}
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## Multiple inputs
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While multiple `<input>`s are supported visually, validation styles are only available for input groups with a single `<input>`.
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{% capture example %}
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<div class="input-group">
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<div class="input-group-prepend">
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<span class="input-group-text">First and last name</span>
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</div>
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<input type="text" aria-label="First name" class="form-control">
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<input type="text" aria-label="Last name" class="form-control">
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</div>
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{% endcapture %}
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{% include example.html content=example %}
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## Multiple addons
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Multiple add-ons are supported and can be mixed with checkbox and radio input versions.
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{% capture example %}
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<div class="input-group mb-3">
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<div class="input-group-prepend">
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<span class="input-group-text">$</span>
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<span class="input-group-text">0.00</span>
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</div>
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<input type="text" class="form-control" aria-label="Dollar amount (with dot and two decimal places)">
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</div>
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<div class="input-group">
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<input type="text" class="form-control" aria-label="Dollar amount (with dot and two decimal places)">
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<div class="input-group-append">
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<span class="input-group-text">$</span>
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<span class="input-group-text">0.00</span>
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</div>
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</div>
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{% endcapture %}
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{% include example.html content=example %}
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## Button addons
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{% capture example %}
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<div class="input-group mb-3">
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<div class="input-group-prepend">
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<button class="btn btn-outline-secondary" type="button" id="button-addon1">Button</button>
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</div>
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<input type="text" class="form-control" placeholder="" aria-label="Example text with button addon" aria-describedby="button-addon1">
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</div>
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<div class="input-group mb-3">
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<input type="text" class="form-control" placeholder="Recipient's username" aria-label="Recipient's username" aria-describedby="button-addon2">
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<div class="input-group-append">
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<button class="btn btn-outline-secondary" type="button" id="button-addon2">Button</button>
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</div>
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</div>
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<div class="input-group mb-3">
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<div class="input-group-prepend" id="button-addon3">
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<button class="btn btn-outline-secondary" type="button">Button</button>
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<button class="btn btn-outline-secondary" type="button">Button</button>
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</div>
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<input type="text" class="form-control" placeholder="" aria-label="Example text with two button addons" aria-describedby="button-addon3">
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</div>
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<div class="input-group">
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<input type="text" class="form-control" placeholder="Recipient's username" aria-label="Recipient's username with two button addons" aria-describedby="button-addon4">
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<div class="input-group-append" id="button-addon4">
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<button class="btn btn-outline-secondary" type="button">Button</button>
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<button class="btn btn-outline-secondary" type="button">Button</button>
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</div>
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</div>
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{% endcapture %}
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{% include example.html content=example %}
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## Buttons with dropdowns
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{% capture example %}
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<div class="input-group mb-3">
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<div class="input-group-prepend">
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<button class="btn btn-outline-secondary dropdown-toggle" type="button" data-toggle="dropdown" aria-expanded="false">Dropdown</button>
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<div class="dropdown-menu">
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<a class="dropdown-item" href="#">Action</a>
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<a class="dropdown-item" href="#">Another action</a>
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<a class="dropdown-item" href="#">Something else here</a>
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<div role="separator" class="dropdown-divider"></div>
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<a class="dropdown-item" href="#">Separated link</a>
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</div>
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</div>
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<input type="text" class="form-control" aria-label="Text input with dropdown button">
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</div>
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<div class="input-group">
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<input type="text" class="form-control" aria-label="Text input with dropdown button">
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<div class="input-group-append">
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<button class="btn btn-outline-secondary dropdown-toggle" type="button" data-toggle="dropdown" aria-expanded="false">Dropdown</button>
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<div class="dropdown-menu">
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<a class="dropdown-item" href="#">Action</a>
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<a class="dropdown-item" href="#">Another action</a>
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<a class="dropdown-item" href="#">Something else here</a>
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<div role="separator" class="dropdown-divider"></div>
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<a class="dropdown-item" href="#">Separated link</a>
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</div>
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</div>
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</div>
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{% endcapture %}
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{% include example.html content=example %}
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## Segmented buttons
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{% capture example %}
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<div class="input-group mb-3">
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<div class="input-group-prepend">
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<button type="button" class="btn btn-outline-secondary">Action</button>
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<button type="button" class="btn btn-outline-secondary dropdown-toggle dropdown-toggle-split" data-toggle="dropdown" aria-expanded="false">
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<span class="sr-only">Toggle Dropdown</span>
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</button>
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<div class="dropdown-menu">
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<a class="dropdown-item" href="#">Action</a>
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<a class="dropdown-item" href="#">Another action</a>
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<a class="dropdown-item" href="#">Something else here</a>
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<div role="separator" class="dropdown-divider"></div>
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<a class="dropdown-item" href="#">Separated link</a>
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</div>
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</div>
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<input type="text" class="form-control" aria-label="Text input with segmented dropdown button">
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</div>
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<div class="input-group">
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<input type="text" class="form-control" aria-label="Text input with segmented dropdown button">
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<div class="input-group-append">
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<button type="button" class="btn btn-outline-secondary">Action</button>
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<button type="button" class="btn btn-outline-secondary dropdown-toggle dropdown-toggle-split" data-toggle="dropdown" aria-expanded="false">
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<span class="sr-only">Toggle Dropdown</span>
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</button>
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<div class="dropdown-menu">
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<a class="dropdown-item" href="#">Action</a>
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<a class="dropdown-item" href="#">Another action</a>
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<a class="dropdown-item" href="#">Something else here</a>
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<div role="separator" class="dropdown-divider"></div>
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<a class="dropdown-item" href="#">Separated link</a>
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</div>
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</div>
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</div>
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{% endcapture %}
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{% include example.html content=example %}
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## Custom forms
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Input groups include support for custom selects and custom file inputs. Browser default versions of these are not supported.
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### Custom select
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{% capture example %}
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<div class="input-group mb-3">
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<div class="input-group-prepend">
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<label class="input-group-text" for="inputGroupSelect01">Options</label>
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</div>
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<select class="custom-select" id="inputGroupSelect01">
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<option selected>Choose...</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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</div>
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<div class="input-group mb-3">
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<select class="custom-select" id="inputGroupSelect02">
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<option selected>Choose...</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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<div class="input-group-append">
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<label class="input-group-text" for="inputGroupSelect02">Options</label>
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</div>
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</div>
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<div class="input-group mb-3">
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<div class="input-group-prepend">
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<button class="btn btn-outline-secondary" type="button">Button</button>
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</div>
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<select class="custom-select" id="inputGroupSelect03" aria-label="Example select with button addon">
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<option selected>Choose...</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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</div>
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<div class="input-group">
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<select class="custom-select" id="inputGroupSelect04" aria-label="Example select with button addon">
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<option selected>Choose...</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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<div class="input-group-append">
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<button class="btn btn-outline-secondary" type="button">Button</button>
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</div>
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</div>
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{% endcapture %}
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{% include example.html content=example %}
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### Custom file input
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{% capture example %}
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<div class="input-group mb-3">
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<div class="input-group-prepend">
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<span class="input-group-text" id="inputGroupFileAddon01">Upload</span>
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</div>
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<div class="custom-file">
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<input type="file" class="custom-file-input" id="inputGroupFile01" aria-describedby="inputGroupFileAddon01">
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<label class="custom-file-label" for="inputGroupFile01">Choose file</label>
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</div>
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</div>
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<div class="input-group mb-3">
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<div class="custom-file">
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<input type="file" class="custom-file-input" id="inputGroupFile02">
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<label class="custom-file-label" for="inputGroupFile02" aria-describedby="inputGroupFileAddon02">Choose file</label>
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</div>
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<div class="input-group-append">
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<span class="input-group-text" id="inputGroupFileAddon02">Upload</span>
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</div>
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</div>
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<div class="input-group mb-3">
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<div class="input-group-prepend">
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<button class="btn btn-outline-secondary" type="button" id="inputGroupFileAddon03">Button</button>
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</div>
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<div class="custom-file">
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<input type="file" class="custom-file-input" id="inputGroupFile03" aria-describedby="inputGroupFileAddon03">
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<label class="custom-file-label" for="inputGroupFile03">Choose file</label>
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</div>
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</div>
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<div class="input-group">
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<div class="custom-file">
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<input type="file" class="custom-file-input" id="inputGroupFile04" aria-describedby="inputGroupFileAddon04">
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<label class="custom-file-label" for="inputGroupFile04">Choose file</label>
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</div>
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<div class="input-group-append">
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<button class="btn btn-outline-secondary" type="button" id="inputGroupFileAddon04">Button</button>
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</div>
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</div>
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{% endcapture %}
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{% include example.html content=example %}
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## Accessibility
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Screen readers will have trouble with your forms if you don't include a label for every input. For these input groups, ensure that any additional label or functionality is conveyed to assistive technologies.
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The exact technique to be used (`<label>` elements hidden using the `.sr-only` class, or use of the `aria-label` and `aria-labelledby` attributes, possibly in combination with `aria-describedby`) and what additional information will need to be conveyed will vary depending on the exact type of interface widget you're implementing. The examples in this section provide a few suggested, case-specific approaches.
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