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244 lines
9.0 KiB
Markdown
244 lines
9.0 KiB
Markdown
---
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layout: docs
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title: Input group
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description: Extend form controls with the input group.
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group: components
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---
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Easily extend form controls by adding text, buttons, or button groups on either side of textual `<input>`s.
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## Contents
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* Will be replaced with the ToC, excluding the "Contents" header
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{:toc}
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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. **We do not support multiple form-controls in a single input group.**
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{% example html %}
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<div class="input-group">
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<span class="input-group-addon" id="basic-addon1">@</span>
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<input type="text" class="form-control" placeholder="Username" aria-describedby="basic-addon1">
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</div>
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<br>
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<div class="input-group">
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<input type="text" class="form-control" placeholder="Recipient's username" aria-describedby="basic-addon2">
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<span class="input-group-addon" id="basic-addon2">@example.com</span>
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</div>
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<br>
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<label for="basic-url">Your vanity URL</label>
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<div class="input-group">
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<span class="input-group-addon" id="basic-addon3">https://example.com/users/</span>
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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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<br>
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<div class="input-group">
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<span class="input-group-addon">$</span>
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<input type="text" class="form-control" aria-label="Amount (to the nearest dollar)">
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<span class="input-group-addon">.00</span>
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</div>
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<br>
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<div class="input-group">
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<span class="input-group-addon">$</span>
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<span class="input-group-addon">0.00</span>
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<input type="text" class="form-control" aria-label="Amount (to the nearest dollar)">
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</div>
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{% endexample %}
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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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{% example html %}
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<div class="input-group input-group-lg">
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<span class="input-group-addon" id="sizing-addon1">@</span>
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<input type="text" class="form-control" placeholder="Username" aria-describedby="sizing-addon1">
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</div>
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<br>
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<div class="input-group">
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<span class="input-group-addon" id="sizing-addon2">@</span>
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<input type="text" class="form-control" placeholder="Username" aria-describedby="sizing-addon2">
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</div>
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{% endexample %}
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## Checkboxes and radio addons
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Place any checkbox or radio option within an input group's addon instead of text.
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{% example html %}
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<div class="row">
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<div class="col-lg-6">
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<div class="input-group">
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<span class="input-group-addon">
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<input type="checkbox" aria-label="Checkbox for following text input">
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</span>
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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>
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<div class="col-lg-6">
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<div class="input-group">
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<span class="input-group-addon">
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<input type="radio" aria-label="Radio button for following text input">
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</span>
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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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</div>
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</div>
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{% endexample %}
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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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{% example html %}
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<div class="row">
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<div class="col-lg-6">
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<div class="input-group">
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<span class="input-group-addon">
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<input type="checkbox" aria-label="Checkbox for following text input">
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</span>
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<span class="input-group-addon">$</span>
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<input type="text" class="form-control" aria-label="Text input with checkbox">
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</div>
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</div>
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<div class="col-lg-6">
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<div class="input-group">
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<span class="input-group-addon">$</span>
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<span class="input-group-addon">0.00</span>
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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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</div>
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</div>
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{% endexample %}
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## Button addons
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Buttons in input groups must wrapped in a `.input-group-btn` for proper alignment and sizing. This is required due to default browser styles that cannot be overridden.
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{% example html %}
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<div class="row">
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<div class="col-lg-6">
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<div class="input-group">
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<span class="input-group-btn">
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<button class="btn btn-secondary" type="button">Go!</button>
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</span>
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<input type="text" class="form-control" placeholder="Search for...">
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</div>
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</div>
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<div class="col-lg-6">
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<div class="input-group">
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<input type="text" class="form-control" placeholder="Search for...">
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<span class="input-group-btn">
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<button class="btn btn-secondary" type="button">Go!</button>
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</span>
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</div>
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</div>
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</div>
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<br>
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<div class="row">
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<div class="col-lg-offset-3 col-lg-6">
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<div class="input-group">
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<span class="input-group-btn">
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<button class="btn btn-secondary" type="button">Hate it</button>
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</span>
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<input type="text" class="form-control" placeholder="Product name">
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<span class="input-group-btn">
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<button class="btn btn-secondary" type="button">Love it</button>
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</span>
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</div>
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</div>
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</div>
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{% endexample %}
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## Buttons with dropdowns
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{% example html %}
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<div class="row">
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<div class="col-lg-6">
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<div class="input-group">
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<div class="input-group-btn">
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<button type="button" class="btn btn-secondary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
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Action
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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 dropdown button">
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</div>
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</div>
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<div class="col-lg-6">
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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-btn">
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<button type="button" class="btn btn-secondary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
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Action
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</button>
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<div class="dropdown-menu dropdown-menu-right">
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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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</div>
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</div>
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{% endexample %}
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## Segmented buttons
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{% example html %}
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<div class="row">
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<div class="col-lg-6">
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<div class="input-group">
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<div class="input-group-btn">
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<button type="button" class="btn btn-secondary">Action</button>
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<button type="button" class="btn btn-secondary dropdown-toggle dropdown-toggle-split" data-toggle="dropdown" aria-haspopup="true" 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 button dropdown">
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</div>
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</div>
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<div class="col-lg-6">
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<div class="input-group">
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<input type="text" class="form-control" aria-label="Text input with segmented button dropdown">
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<div class="input-group-btn">
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<button type="button" class="btn btn-secondary">Action</button>
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<button type="button" class="btn btn-secondary dropdown-toggle dropdown-toggle-split" data-toggle="dropdown" aria-haspopup="true" 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 dropdown-menu-right">
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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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</div>
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</div>
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{% endexample %}
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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`, `aria-labelledby`, `aria-describedby`, `title` or `placeholder` attribute) 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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