Hospital Management

Examples

Bootstrap includes several predefined button styles, each serving its own semantic purpose, with a few extras thrown in for more control.

<button type="button" class="btn btn-primary">Primary</button>
<button type="button" class="btn btn-secondary">Secondary</button>
<button type="button" class="btn btn-success">Success</button>
<button type="button" class="btn btn-danger">Danger</button>
<button type="button" class="btn btn-warning">Warning</button>
<button type="button" class="btn btn-info">Info</button>
<button type="button" class="btn btn-light">Light</button>
<button type="button" class="btn btn-dark">Dark</button>

<button type="button" class="btn btn-link">Link</button>
Conveying meaning to assistive technologies

Using color to add meaning only provides a visual indication, which will not be conveyed to users of assistive technologies – such as screen readers. Ensure that information denoted by the color is either obvious from the content itself (e.g. the visible text), or is included through alternative means, such as additional text hidden with the .visually-hidden class.

Disable text wrapping

If you don’t want the button text to wrap, you can add the .text-nowrap class to the button. In Sass, you can set $btn-white-space: nowrap to disable text wrapping for each button.

Button tags

The .btn classes are designed to be used with the <button> element. However, you can also use these classes on <a> or <input> elements (though some browsers may apply a slightly different rendering).

When using button classes on <a> elements that are used to trigger in-page functionality (like collapsing content), rather than linking to new pages or sections within the current page, these links should be given a role="button" to appropriately convey their purpose to assistive technologies such as screen readers.

Link 
<a class="btn btn-primary" href="#" role="button">Link</a>
<button class="btn btn-primary" type="submit">Button</button>
<input class="btn btn-primary" type="button" value="Input">
<input class="btn btn-primary" type="submit" value="Submit">
<input class="btn btn-primary" type="reset" value="Reset">

Outline buttons

In need of a button, but not the hefty background colors they bring? Replace the default modifier classes with the .btn-outline-* ones to remove all background images and colors on any button.

<button type="button" class="btn btn-outline-primary">Primary</button>
<button type="button" class="btn btn-outline-secondary">Secondary</button>
<button type="button" class="btn btn-outline-success">Success</button>
<button type="button" class="btn btn-outline-danger">Danger</button>
<button type="button" class="btn btn-outline-warning">Warning</button>
<button type="button" class="btn btn-outline-info">Info</button>
<button type="button" class="btn btn-outline-light">Light</button>
<button type="button" class="btn btn-outline-dark">Dark</button>

Sizes

Fancy larger or smaller buttons? Add .btn-lg or .btn-sm for additional sizes.

<button type="button" class="btn btn-primary btn-lg">Large button</button>
<button type="button" class="btn btn-secondary btn-lg">Large button</button>

<button type="button" class="btn btn-primary btn-sm">Small button</button>
<button type="button" class="btn btn-secondary btn-sm">Small button</button>

Create block level buttons—those that span the full width of a parent—by adding .btn-block.

<button type="button" class="btn btn-primary btn-lg btn-block">Block level button</button>
<button type="button" class="btn btn-secondary btn-lg btn-block">Block level button</button>

Disabled state

Make buttons look inactive by adding the disabled boolean attribute to any <button> element. Disabled buttons have pointer-events: none applied to, preventing hover and active states from triggering.

<button type="button" class="btn btn-lg btn-primary" disabled="">Primary button</button>
<button type="button" class="btn btn-secondary btn-lg" disabled="">Button</button>

Disabled buttons using the <a> element behave a bit different:

  • <a>s don’t support the disabled attribute, so you must add the .disabled class to make it visually appear disabled.
  • Some future-friendly styles are included to disable all pointer-events on anchor buttons.
  • Disabled buttons should include the aria-disabled="true" attribute to indicate the state of the element to assistive technologies.
Primary link Link 
<a href="#" class="btn btn-primary btn-lg disabled" tabindex="-1" role="button" aria-disabled="true">Primary link</a>
<a href="#" class="btn btn-secondary btn-lg disabled" tabindex="-1" role="button" aria-disabled="true">Link</a>

The .disabled class uses pointer-events: none to try to disable the link functionality of <a>s, but that CSS property is not yet standardized. In addition, even in browsers that do support pointer-events: none, keyboard navigation remains unaffected, meaning that sighted keyboard users and users of assistive technologies will still be able to activate these links. So to be safe, in addition to aria-disabled="true", also include a tabindex="-1" attribute on these links to prevent them from receiving keyboard focus, and use custom JavaScript to disable their functionality altogether.

Button plugin

The button plugin allows you to create simple on/off toggle buttons.

Visually, these toggle buttons are identical to the checkbox toggle buttons. However, they are conveyed differently by assistive technologies: the checkbox toggles will be announced by screen readers as “checked”/“not checked” (since, despite their appearance, they are fundamentally still checkboxes), whereas these toggle buttons will be announced as “button”/“button pressed”. The choice between these two approaches will depend on the type of toggle you are creating, and whether or not the toggle will make sense to users when announced as a checkbox or as an actual button.

Toggle states

Add data-bs-toggle="button" to toggle a button’s active state. If you’re pre-toggling a button, you must manually add the .active class and aria-pressed="true" to ensure that it is conveyed appropriately to assistive technologies.

<button type="button" class="btn btn-primary" data-bs-toggle="button" autocomplete="off">Toggle button</button>
<button type="button" class="btn btn-primary active" data-bs-toggle="button" autocomplete="off" aria-pressed="true">Active toggle button</button>
<button type="button" class="btn btn-primary" disabled="" data-bs-toggle="button" autocomplete="off">Disabled toggle button</button>
Toggle link Active toggle link Disabled toggle link 
<a href="#" class="btn btn-primary" role="button" data-bs-toggle="button">Toggle link</a>
<a href="#" class="btn btn-primary active" role="button" data-bs-toggle="button" aria-pressed="true">Active toggle link</a>
<a href="#" class="btn btn-primary disabled" tabindex="-1" aria-disabled="true" role="button" data-bs-toggle="button">Disabled toggle link</a>

Methods

You can create a button instance with the button constructor, for example:

var button = document.getElementById('myButton')
var bsButton = new bootstrap.Button(button)
Method Description
toggle Toggles push state. Gives the button the appearance that it has been activated.
dispose Destroys an element's button.

For example, to toggle all buttons

var buttons = document.querySelectorAll('.btn')
buttons.forEach(function (button) {
    var button = new bootstrap.Button(button)
    button.toggle()
})
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Basic example

Wrap a series of buttons with .btn in .btn-group.

<div class="btn-group" role="group" aria-label="Basic example">
    <button type="button" class="btn btn-primary">Left</button>
    <button type="button" class="btn btn-primary">Middle</button>
    <button type="button" class="btn btn-primary">Right</button>
</div>
Ensure correct role and provide a label

In order for assistive technologies (such as screen readers) to convey that a series of buttons is grouped, an appropriate role attribute needs to be provided. For button groups, this would be role="group", while toolbars should have a role="toolbar".

In addition, groups and toolbars should be given an explicit label, as most assistive technologies will otherwise not announce them, despite the presence of the correct role attribute. In the examples provided here, we use aria-label, but alternatives such as aria-labelledby can also be used.

These classes can also be added to groups of links, as an alternative to the .nav navigation components.

Active link Link Link 
<div class="btn-group">
    <a href="#" class="btn btn-primary active" aria-current="page">Active link</a>
    <a href="#" class="btn btn-primary">Link</a>
    <a href="#" class="btn btn-primary">Link</a>
</div>

Mixed styles

<div class="btn-group" role="group" aria-label="Basic mixed styles example">
    <button type="button" class="btn btn-danger">Left</button>
    <button type="button" class="btn btn-warning">Middle</button>
    <button type="button" class="btn btn-success">Right</button>
</div>

Outlined styles

<div class="btn-group" role="group" aria-label="Basic outlined example">
    <button type="button" class="btn btn-outline-primary">Left</button>
    <button type="button" class="btn btn-outline-primary">Middle</button>
    <button type="button" class="btn btn-outline-primary">Right</button>
</div>

Checkbox and radio button groups

Combine button-like checkbox and radio toggle buttons into a seamless looking button group.

<div class="btn-group" role="group" aria-label="Basic checkbox toggle button group">
    <input type="checkbox" class="btn-check" id="btncheck1" autocomplete="off">
    <label class="btn btn-outline-primary" for="btncheck1">Checkbox 1</label>

    <input type="checkbox" class="btn-check" id="btncheck2" autocomplete="off">
    <label class="btn btn-outline-primary" for="btncheck2">Checkbox 2</label>

    <input type="checkbox" class="btn-check" id="btncheck3" autocomplete="off">
    <label class="btn btn-outline-primary" for="btncheck3">Checkbox 3</label>
</div>

<div class="btn-group" role="group" aria-label="Basic radio toggle button group">
    <input type="radio" class="btn-check" name="btnradio" id="btnradio1" autocomplete="off" checked="">
    <label class="btn btn-outline-primary" for="btnradio1">Radio 1</label>

    <input type="radio" class="btn-check" name="btnradio" id="btnradio2" autocomplete="off">
    <label class="btn btn-outline-primary" for="btnradio2">Radio 2</label>

    <input type="radio" class="btn-check" name="btnradio" id="btnradio3" autocomplete="off">
    <label class="btn btn-outline-primary" for="btnradio3">Radio 3</label>
</div>

Button toolbar

Combine sets of button groups into button toolbars for more complex components. Use utility classes as needed to space out groups, buttons, and more.

<div class="btn-toolbar" role="toolbar" aria-label="Toolbar with button groups">
    <div class="btn-group me-2" role="group" aria-label="First group">
        <button type="button" class="btn btn-primary">1</button>
        <button type="button" class="btn btn-primary">2</button>
        <button type="button" class="btn btn-primary">3</button>
        <button type="button" class="btn btn-primary">4</button>
    </div>
    <div class="btn-group me-2" role="group" aria-label="Second group">
        <button type="button" class="btn btn-secondary">5</button>
        <button type="button" class="btn btn-secondary">6</button>
        <button type="button" class="btn btn-secondary">7</button>
    </div>
    <div class="btn-group" role="group" aria-label="Third group">
        <button type="button" class="btn btn-info">8</button>
    </div>
</div>

Feel free to mix input groups with button groups in your toolbars. Similar to the example above, you’ll likely need some utilities though to space things properly.

<div class="btn-toolbar mb-3" role="toolbar" aria-label="Toolbar with button groups">
    <div class="btn-group me-2" role="group" aria-label="First group">
        <button type="button" class="btn btn-outline-secondary">1</button>
        <button type="button" class="btn btn-outline-secondary">2</button>
        <button type="button" class="btn btn-outline-secondary">3</button>
        <button type="button" class="btn btn-outline-secondary">4</button>
    </div>
    <div class="input-group">
        <div class="input-group-text" id="btnGroupAddon">@</div>
        <input type="text" class="form-control" placeholder="Input group example" aria-label="Input group example" aria-describedby="btnGroupAddon">
    </div>
</div>

<div class="btn-toolbar justify-content-between" role="toolbar" aria-label="Toolbar with button groups">
    <div class="btn-group" role="group" aria-label="First group">
        <button type="button" class="btn btn-outline-secondary">1</button>
        <button type="button" class="btn btn-outline-secondary">2</button>
        <button type="button" class="btn btn-outline-secondary">3</button>
        <button type="button" class="btn btn-outline-secondary">4</button>
    </div>
        <div class="input-group">
        <div class="input-group-text" id="btnGroupAddon2">@</div>
        <input type="text" class="form-control" placeholder="Input group example" aria-label="Input group example" aria-describedby="btnGroupAddon2">
    </div>
</div>

Sizing

Instead of applying button sizing classes to every button in a group, just add .btn-group-* to each .btn-group, including each one when nesting multiple groups.

<div class="btn-group btn-group-lg" role="group" aria-label="Large button group">
    <button type="button" class="btn btn-outline-dark">Left</button>
    <button type="button" class="btn btn-outline-dark">Middle</button>
    <button type="button" class="btn btn-outline-dark">Right</button>
</div>
<br>
<div class="btn-group" role="group" aria-label="Default button group">
    <button type="button" class="btn btn-outline-dark">Left</button>
    <button type="button" class="btn btn-outline-dark">Middle</button>
    <button type="button" class="btn btn-outline-dark">Right</button>
</div>
<br>
<div class="btn-group btn-group-sm" role="group" aria-label="Small button group">
    <button type="button" class="btn btn-outline-dark">Left</button>
    <button type="button" class="btn btn-outline-dark">Middle</button>
    <button type="button" class="btn btn-outline-dark">Right</button>
</div>

Nesting

Place a .btn-group within another .btn-group when you want dropdown menus mixed with a series of buttons.

<div class="btn-group" role="group" aria-label="Button group with nested dropdown">
    <button type="button" class="btn btn-primary">1</button>
    <button type="button" class="btn btn-primary">2</button>

    <div class="btn-group" role="group">
        <button id="btnGroupDrop1" type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">
            Dropdown
        </button>
        <ul class="dropdown-menu" aria-labelledby="btnGroupDrop1">
            <li><a class="dropdown-item" href="#">Dropdown link</a></li>
            <li><a class="dropdown-item" href="#">Dropdown link</a></li>
        </ul>
    </div>
</div>

Vertical variation

Make a set of buttons appear vertically stacked rather than horizontally. Split button dropdowns are not supported here.

<div class="btn-group-vertical" role="group" aria-label="Vertical button group">
    <button type="button" class="btn btn-dark">Button</button>
    <button type="button" class="btn btn-dark">Button</button>
    <button type="button" class="btn btn-dark">Button</button>
    <button type="button" class="btn btn-dark">Button</button>
    <button type="button" class="btn btn-dark">Button</button>
    <button type="button" class="btn btn-dark">Button</button>
</div>

<div class="btn-group-vertical" role="group" aria-label="Vertical button group">
    <button type="button" class="btn btn-primary">Button</button>
    <button type="button" class="btn btn-primary">Button</button>
    <div class="btn-group" role="group">
        <button id="btnGroupVerticalDrop1" type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">
            Dropdown
        </button>
        <ul class="dropdown-menu" aria-labelledby="btnGroupVerticalDrop1">
            <li><a class="dropdown-item" href="#">Dropdown link</a></li>
            <li><a class="dropdown-item" href="#">Dropdown link</a></li>
        </ul>
    </div>
    <button type="button" class="btn btn-primary">Button</button>
    <button type="button" class="btn btn-primary">Button</button>
    <div class="btn-group" role="group">
        <button id="btnGroupVerticalDrop2" type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">
            Dropdown
        </button>
        <ul class="dropdown-menu" aria-labelledby="btnGroupVerticalDrop2">
            <li><a class="dropdown-item" href="#">Dropdown link</a></li>
            <li><a class="dropdown-item" href="#">Dropdown link</a></li>
        </ul>
    </div>
    <div class="btn-group" role="group">
        <button id="btnGroupVerticalDrop3" type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">
            Dropdown
        </button>
        <ul class="dropdown-menu" aria-labelledby="btnGroupVerticalDrop3">
            <li><a class="dropdown-item" href="#">Dropdown link</a></li>
            <li><a class="dropdown-item" href="#">Dropdown link</a></li>
        </ul>
    </div>
    <div class="btn-group" role="group">
        <button id="btnGroupVerticalDrop4" type="button" class="btn btn-primary dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">
            Dropdown
        </button>
        <ul class="dropdown-menu" aria-labelledby="btnGroupVerticalDrop4">
            <li><a class="dropdown-item" href="#">Dropdown link</a></li>
            <li><a class="dropdown-item" href="#">Dropdown link</a></li>
        </ul>
    </div>
</div>

<div class="btn-group-vertical" role="group" aria-label="Vertical radio toggle button group">
    <input type="radio" class="btn-check" name="vbtn-radio" id="vbtn-radio1" autocomplete="off" checked="">
    <label class="btn btn-outline-danger" for="vbtn-radio1">Radio 1</label>
    <input type="radio" class="btn-check" name="vbtn-radio" id="vbtn-radio2" autocomplete="off">
    <label class="btn btn-outline-danger" for="vbtn-radio2">Radio 2</label>
    <input type="radio" class="btn-check" name="vbtn-radio" id="vbtn-radio3" autocomplete="off">
    <label class="btn btn-outline-danger" for="vbtn-radio3">Radio 3</label>
</div>
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