From 54fa28441c5f0bdcd9687615f4a6b7a0fab024a3 Mon Sep 17 00:00:00 2001
From: Mario Vavti <mario@mariovavti.com>
Date: Fri, 7 Sep 2018 11:26:02 +0200
Subject: install bootstrap via composer

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+---
+layout: docs
+title: Input group
+description: Easily extend form controls by adding text, buttons, or button groups on either side of textual inputs, custom selects, and custom file inputs.
+group: components
+toc: true
+---
+
+## Basic example
+
+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.
+
+{% capture example %}
+<div class="input-group mb-3">
+  <div class="input-group-prepend">
+    <span class="input-group-text" id="basic-addon1">@</span>
+  </div>
+  <input type="text" class="form-control" placeholder="Username" aria-label="Username" aria-describedby="basic-addon1">
+</div>
+
+<div class="input-group mb-3">
+  <input type="text" class="form-control" placeholder="Recipient's username" aria-label="Recipient's username" aria-describedby="basic-addon2">
+  <div class="input-group-append">
+    <span class="input-group-text" id="basic-addon2">@example.com</span>
+  </div>
+</div>
+
+<label for="basic-url">Your vanity URL</label>
+<div class="input-group mb-3">
+  <div class="input-group-prepend">
+    <span class="input-group-text" id="basic-addon3">https://example.com/users/</span>
+  </div>
+  <input type="text" class="form-control" id="basic-url" aria-describedby="basic-addon3">
+</div>
+
+<div class="input-group mb-3">
+  <div class="input-group-prepend">
+    <span class="input-group-text">$</span>
+  </div>
+  <input type="text" class="form-control" aria-label="Amount (to the nearest dollar)">
+  <div class="input-group-append">
+    <span class="input-group-text">.00</span>
+  </div>
+</div>
+
+<div class="input-group">
+  <div class="input-group-prepend">
+    <span class="input-group-text">With textarea</span>
+  </div>
+  <textarea class="form-control" aria-label="With textarea"></textarea>
+</div>
+{% endcapture %}
+{% include example.html content=example %}
+
+## Sizing
+
+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.
+
+**Sizing on the individual input group elements isn't supported.**
+
+{% capture example %}
+<div class="input-group input-group-sm mb-3">
+  <div class="input-group-prepend">
+    <span class="input-group-text" id="inputGroup-sizing-sm">Small</span>
+  </div>
+  <input type="text" class="form-control" aria-label="Sizing example input" aria-describedby="inputGroup-sizing-sm">
+</div>
+
+<div class="input-group mb-3">
+  <div class="input-group-prepend">
+    <span class="input-group-text" id="inputGroup-sizing-default">Default</span>
+  </div>
+  <input type="text" class="form-control" aria-label="Sizing example input" aria-describedby="inputGroup-sizing-default">
+</div>
+
+<div class="input-group input-group-lg">
+  <div class="input-group-prepend">
+    <span class="input-group-text" id="inputGroup-sizing-lg">Large</span>
+  </div>
+  <input type="text" class="form-control" aria-label="Sizing example input" aria-describedby="inputGroup-sizing-lg">
+</div>
+{% endcapture %}
+{% include example.html content=example %}
+
+## Checkboxes and radios
+
+Place any checkbox or radio option within an input group's addon instead of text.
+
+{% capture example %}
+<div class="input-group mb-3">
+  <div class="input-group-prepend">
+    <div class="input-group-text">
+      <input type="checkbox" aria-label="Checkbox for following text input">
+    </div>
+  </div>
+  <input type="text" class="form-control" aria-label="Text input with checkbox">
+</div>
+
+<div class="input-group">
+  <div class="input-group-prepend">
+    <div class="input-group-text">
+      <input type="radio" aria-label="Radio button for following text input">
+    </div>
+  </div>
+  <input type="text" class="form-control" aria-label="Text input with radio button">
+</div>
+{% endcapture %}
+{% include example.html content=example %}
+
+## Multiple inputs
+
+While multiple `<input>`s are supported visually, validation styles are only available for input groups with a single `<input>`.
+
+{% capture example %}
+<div class="input-group">
+  <div class="input-group-prepend">
+    <span class="input-group-text">First and last name</span>
+  </div>
+  <input type="text" aria-label="First name" class="form-control">
+  <input type="text" aria-label="Last name" class="form-control">
+</div>
+{% endcapture %}
+{% include example.html content=example %}
+
+## Multiple addons
+
+Multiple add-ons are supported and can be mixed with checkbox and radio input versions.
+
+{% capture example %}
+<div class="input-group mb-3">
+  <div class="input-group-prepend">
+    <span class="input-group-text">$</span>
+    <span class="input-group-text">0.00</span>
+  </div>
+  <input type="text" class="form-control" aria-label="Dollar amount (with dot and two decimal places)">
+</div>
+
+<div class="input-group">
+  <input type="text" class="form-control" aria-label="Dollar amount (with dot and two decimal places)">
+  <div class="input-group-append">
+    <span class="input-group-text">$</span>
+    <span class="input-group-text">0.00</span>
+  </div>
+</div>
+{% endcapture %}
+{% include example.html content=example %}
+
+## Button addons
+
+{% capture example %}
+<div class="input-group mb-3">
+  <div class="input-group-prepend">
+    <button class="btn btn-outline-secondary" type="button" id="button-addon1">Button</button>
+  </div>
+  <input type="text" class="form-control" placeholder="" aria-label="Example text with button addon" aria-describedby="button-addon1">
+</div>
+
+<div class="input-group mb-3">
+  <input type="text" class="form-control" placeholder="Recipient's username" aria-label="Recipient's username" aria-describedby="button-addon2">
+  <div class="input-group-append">
+    <button class="btn btn-outline-secondary" type="button" id="button-addon2">Button</button>
+  </div>
+</div>
+
+<div class="input-group mb-3">
+  <div class="input-group-prepend" id="button-addon3">
+    <button class="btn btn-outline-secondary" type="button">Button</button>
+    <button class="btn btn-outline-secondary" type="button">Button</button>
+  </div>
+  <input type="text" class="form-control" placeholder="" aria-label="Example text with two button addons" aria-describedby="button-addon3">
+</div>
+
+<div class="input-group">
+  <input type="text" class="form-control" placeholder="Recipient's username" aria-label="Recipient's username with two button addons" aria-describedby="button-addon4">
+  <div class="input-group-append" id="button-addon4">
+    <button class="btn btn-outline-secondary" type="button">Button</button>
+    <button class="btn btn-outline-secondary" type="button">Button</button>
+  </div>
+</div>
+{% endcapture %}
+{% include example.html content=example %}
+
+## Buttons with dropdowns
+
+{% capture example %}
+<div class="input-group mb-3">
+  <div class="input-group-prepend">
+    <button class="btn btn-outline-secondary dropdown-toggle" type="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Dropdown</button>
+    <div class="dropdown-menu">
+      <a class="dropdown-item" href="#">Action</a>
+      <a class="dropdown-item" href="#">Another action</a>
+      <a class="dropdown-item" href="#">Something else here</a>
+      <div role="separator" class="dropdown-divider"></div>
+      <a class="dropdown-item" href="#">Separated link</a>
+    </div>
+  </div>
+  <input type="text" class="form-control" aria-label="Text input with dropdown button">
+</div>
+
+<div class="input-group">
+  <input type="text" class="form-control" aria-label="Text input with dropdown button">
+  <div class="input-group-append">
+    <button class="btn btn-outline-secondary dropdown-toggle" type="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Dropdown</button>
+    <div class="dropdown-menu">
+      <a class="dropdown-item" href="#">Action</a>
+      <a class="dropdown-item" href="#">Another action</a>
+      <a class="dropdown-item" href="#">Something else here</a>
+      <div role="separator" class="dropdown-divider"></div>
+      <a class="dropdown-item" href="#">Separated link</a>
+    </div>
+  </div>
+</div>
+{% endcapture %}
+{% include example.html content=example %}
+
+## Segmented buttons
+
+{% capture example %}
+<div class="input-group mb-3">
+  <div class="input-group-prepend">
+    <button type="button" class="btn btn-outline-secondary">Action</button>
+    <button type="button" class="btn btn-outline-secondary dropdown-toggle dropdown-toggle-split" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
+      <span class="sr-only">Toggle Dropdown</span>
+    </button>
+    <div class="dropdown-menu">
+      <a class="dropdown-item" href="#">Action</a>
+      <a class="dropdown-item" href="#">Another action</a>
+      <a class="dropdown-item" href="#">Something else here</a>
+      <div role="separator" class="dropdown-divider"></div>
+      <a class="dropdown-item" href="#">Separated link</a>
+    </div>
+  </div>
+  <input type="text" class="form-control" aria-label="Text input with segmented dropdown button">
+</div>
+
+<div class="input-group">
+  <input type="text" class="form-control" aria-label="Text input with segmented dropdown button">
+  <div class="input-group-append">
+    <button type="button" class="btn btn-outline-secondary">Action</button>
+    <button type="button" class="btn btn-outline-secondary dropdown-toggle dropdown-toggle-split" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
+      <span class="sr-only">Toggle Dropdown</span>
+    </button>
+    <div class="dropdown-menu">
+      <a class="dropdown-item" href="#">Action</a>
+      <a class="dropdown-item" href="#">Another action</a>
+      <a class="dropdown-item" href="#">Something else here</a>
+      <div role="separator" class="dropdown-divider"></div>
+      <a class="dropdown-item" href="#">Separated link</a>
+    </div>
+  </div>
+</div>
+{% endcapture %}
+{% include example.html content=example %}
+
+## Custom forms
+
+Input groups include support for custom selects and custom file inputs. Browser default versions of these are not supported.
+
+### Custom select
+
+{% capture example %}
+<div class="input-group mb-3">
+  <div class="input-group-prepend">
+    <label class="input-group-text" for="inputGroupSelect01">Options</label>
+  </div>
+  <select class="custom-select" id="inputGroupSelect01">
+    <option selected>Choose...</option>
+    <option value="1">One</option>
+    <option value="2">Two</option>
+    <option value="3">Three</option>
+  </select>
+</div>
+
+<div class="input-group mb-3">
+  <select class="custom-select" id="inputGroupSelect02">
+    <option selected>Choose...</option>
+    <option value="1">One</option>
+    <option value="2">Two</option>
+    <option value="3">Three</option>
+  </select>
+  <div class="input-group-append">
+    <label class="input-group-text" for="inputGroupSelect02">Options</label>
+  </div>
+</div>
+
+<div class="input-group mb-3">
+  <div class="input-group-prepend">
+    <button class="btn btn-outline-secondary" type="button">Button</button>
+  </div>
+  <select class="custom-select" id="inputGroupSelect03" aria-label="Example select with button addon">
+    <option selected>Choose...</option>
+    <option value="1">One</option>
+    <option value="2">Two</option>
+    <option value="3">Three</option>
+  </select>
+</div>
+
+<div class="input-group">
+  <select class="custom-select" id="inputGroupSelect04" aria-label="Example select with button addon">
+    <option selected>Choose...</option>
+    <option value="1">One</option>
+    <option value="2">Two</option>
+    <option value="3">Three</option>
+  </select>
+  <div class="input-group-append">
+    <button class="btn btn-outline-secondary" type="button">Button</button>
+  </div>
+</div>
+{% endcapture %}
+{% include example.html content=example %}
+
+### Custom file input
+
+{% capture example %}
+<div class="input-group mb-3">
+  <div class="input-group-prepend">
+    <span class="input-group-text" id="inputGroupFileAddon01">Upload</span>
+  </div>
+  <div class="custom-file">
+    <input type="file" class="custom-file-input" id="inputGroupFile01" aria-describedby="inputGroupFileAddon01">
+    <label class="custom-file-label" for="inputGroupFile01">Choose file</label>
+  </div>
+</div>
+
+<div class="input-group mb-3">
+  <div class="custom-file">
+    <input type="file" class="custom-file-input" id="inputGroupFile02">
+    <label class="custom-file-label" for="inputGroupFile02" aria-describedby="inputGroupFileAddon02">Choose file</label>
+  </div>
+  <div class="input-group-append">
+    <span class="input-group-text" id="inputGroupFileAddon02">Upload</span>
+  </div>
+</div>
+
+<div class="input-group mb-3">
+  <div class="input-group-prepend">
+    <button class="btn btn-outline-secondary" type="button" id="inputGroupFileAddon03">Button</button>
+  </div>
+  <div class="custom-file">
+    <input type="file" class="custom-file-input" id="inputGroupFile03" aria-describedby="inputGroupFileAddon03">
+    <label class="custom-file-label" for="inputGroupFile03">Choose file</label>
+  </div>
+</div>
+
+<div class="input-group">
+  <div class="custom-file">
+    <input type="file" class="custom-file-input" id="inputGroupFile04" aria-describedby="inputGroupFileAddon04">
+    <label class="custom-file-label" for="inputGroupFile04">Choose file</label>
+  </div>
+  <div class="input-group-append">
+    <button class="btn btn-outline-secondary" type="button" id="inputGroupFileAddon04">Button</button>
+  </div>
+</div>
+{% endcapture %}
+{% include example.html content=example %}
+
+## Accessibility
+
+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.
+
+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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