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This chapter will discuss about Bootstrap form controls. Custom styles, size, focus states, and other features can be used to upgrade textual form controls like <input> and <textarea>.
Basic example
Use the classes .form-control and .form-label to style the form controls.
Example
You can edit and try running this code using Edit & Run option.
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap - Form Control</title>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<div class="mb-3">
<label for="formControlName" class="form-label">Full Name</label>
<input type="text" class="form-control" id="formControlName" placeholder="name">
</div>
<div class="mb-3">
<label for="formControlEmail" class="form-label">Email id</label>
<input type="text" class="form-control" id="formControlEmail" placeholder="tutorialspoint@example.com">
</div>
<div class="mb-3">
<label for="formControlTextarea" class="form-label">Add a comment</label>
<textarea class="form-control" id="formControlTextarea" rows="3"></textarea>
</div>
<button type="submit" class="btn btn-success">Submit</button>
</body>
</html>
Sizing
Use classes like .form-control-lg and .form-control-sm to specify the size for the form input field.
Example
You can edit and try running this code using Edit & Run option.
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap - Form Control</title>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<input class="form-control form-control-lg mt-2" type="text" placeholder="Large size input box" aria-label=".form-control-lg example">
<input class="form-control mt-2" type="text" placeholder="Default size input box" aria-label="default input example">
<input class="form-control form-control-sm mt-2" type="text" placeholder="Small size input box" aria-label=".form-control-sm example">
</body>
</html>
Form text
-
Use .form-text to create block-level or inline-level form text .
-
A top margin is added to easily space the inputs above a block-level element.
Associate form text with form controls using aria-labelledby or aria-describedby attributes to ensure it is announced by assistive technologies such as screen readers.
Example
You can edit and try running this code using Edit & Run option.
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap - Form Control</title>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<label for="inputUsername" class="form-label mt-2">Username</label>
<input type="text" id="inputUsername" class="form-control" aria-labelledby="UsernameHelpBlock">
<div id="UsernameHelpBlock" class="form-text">
Your username 6–20 characters long and can be any combination of letters, numbers or symbols.
</div>
<label for="inputPassword" class="form-label mt-2">Password</label>
<input type="text" id="inputPassword" class="form-control" aria-labelledby="PasswordHelpBlock">
<div id="PasswordHelpBlock" class="form-text">
must be 6-20 characters long.
</div>
<button type="submit" class="btn btn-primary mt-2">Submit</button>
</body>
</html>
Inline text can use any typical inline HTML element (such as, <span>, <small>…etc) with only .form-text class.
Example
You can edit and try running this code using Edit & Run option.
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap - Form Control</title>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<div class="row g-3 align-items-center mt-2">
<div class="col-auto">
<label for="inputUsername" class="col-form-label">Username</label>
</div>
<div class="col-auto">
<input type="text" id="inputUsername" class="form-control" aria-labelledby="usernameHelpInline">
</div>
<div class="col-auto">
<span id="usernameHelpInline" class="form-text">
Username 6–20 characters long.
</span>
</div>
</div>
</body>
</html>
Disabled
For a grayed-out appearance and to remove pointer events use the disabled attribute to an input.
Example
You can edit and try running this code using Edit & Run option.
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap - Form Control</title>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<input class="form-control mt-2" type="text" placeholder="Disable Input Field" aria-label="Disabled input example" disabled>
</body>
</html>
Readonly
Use the readonly attribute to prevent changes to an input”s value.
Example
You can edit and try running this code using Edit & Run option.
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap - Form Control</title>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<input class="form-control mt-2" type="text" value="Tutorialspoint" aria-label="readonly example" readonly>
</body>
</html>
Readonly plain text
.form-control-plaintext creates a readonly input field as a plaintext. This removes styling and preserves the proper margin and padding.
Example
You can edit and try running this code using Edit & Run option.
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap - Form Control</title>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<div class="mb-3 row">
<label for="name" class="col-sm-2 col-form-label">Name</label>
<div class="col-sm-3">
<input type="text" readonly class="form-control-plaintext" id="name" value="Tutorialspoint">
</div>
</div>
<div class="mb-3 row">
<label for="bootstrap" class="col-sm-2 col-form-label">Language</label>
<div class="col-sm-3">
<input type="text" class="form-control" id="bootstrap" placeholder="Bootstrap">
</div>
</div>
</body>
</html>
In readonly plaintext inline, you can make form labels and inputs will appear inline and horizontally.
Example
You can edit and try running this code using Edit & Run option.
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap - Form Control</title>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<form class="row g-2 mt-2">
<div class="col-auto">
<input type="text" readonly class="form-control-plaintext" id="staticName" value="Tutorialspoint">
</div>
<div class="col-auto">
<input type="text" class="form-control" id="inputLanguage" placeholder="Bootstrap">
</div>
</form>
</body>
</html>
File input
File input is used to browse the file as an input on your computer.
File input using sizes
-
Use .form-control-sm to make the size of file input smaller.
-
Use .form-control-lg to make the size of file input bigger.
Example
You can edit and try running this code using Edit & Run option.
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap - Form Control</title>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<div class="mb-3">
<label for="fileInputsm" class="form-label">Small size file input</label>
<input class="form-control form-control-sm" id="fileInputsm" type="file">
</div>
<div>
<label for="fileInputlg" class="form-label">Large size file input</label>
<input class="form-control form-control-lg" id="fileInputlg" type="file">
</div>
</body>
</html>
File input using attribute
-
There is no need to explicitly define the default attribute.
-
Use disabled attribute which give grayed-out appearance and remove pointer events.
-
Multiple files can be accepted for input at once with multiple attribute.
Example
You can edit and try running this code using Edit & Run option.
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap - Form Control</title>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<div class="mb-3">
<label for="defaultFileInput" class="form-label">Default file input</label>
<input class="form-control" type="file" id="defaultFileInput">
</div>
<div class="mb-3">
<label for="disabledFileInput" class="form-label">Disabled file input</label>
<input class="form-control" type="file" id="disabledFileInput" disabled>
</div>
<div class="mb-3">
<label for="multipleFileInput" class="form-label">Multiple files input</label>
<input class="form-control" type="file" id="multipleFileInput" multiple>
</div>
</body>
</html>
Color
Use .form-control-color class and type=”color” attribute in the <input> element to add color to the input field.
Example
You can edit and try running this code using Edit & Run option.
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap - Form Control</title>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<label for="colorInput" class="form-label">Select a color</label>
<input type="color" class="form-control form-control-color" id="colorInput" value="#228b22">
</body>
</html>
Datalists
You can create a group of <option>”s that can be accessed from a <input> by using datalists. Browsers and operating systems provide limited and inconsistent styling for <datalist> elements.
Example
You can edit and try running this code using Edit & Run option.
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap - Form Control</title>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha3/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<label for="dataList" class="form-label">Languages</label>
<input class="form-control" list="datalistOptions" id="dataList" placeholder="Search languages...">
<datalist id="datalistOptions">
<option value="Bootstrap">
<option value="HTML">
<option value="CSS">
</datalist>
</body>
</html>
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