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Bootstrap Forms

In Bootstrap, there are three types of form layouts:

• Vertical form (this is default)
• Horizontal form
• Inline form

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Bootstrap Form Rules

There are three standard rules for these 3 form layouts:

• Always use <form role=”form”> (helps improve accessibility for people using screen readers)
• Wrap labels and form controls in <div class=”form-group”> (needed for optimum spacing)
• Add class .form-control to all textual <input>, <textarea>, and <select> elements

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1) Bootstrap Vertical Form (Default)

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2) Bootstrap Inline Form

In Bootstrap Inline forms, all elements are inline, left-aligned, and the labels are alongside.

This example is only applied to forms within viewports that are at least 768px wide!

Example:

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3) Bootstrap Horizontal Form

You have to add some additional rules if you want to create a horizontal form.

Additional rules for a horizontal form:

• Add class .form-horizontal to the <form> element
• Add class .control-label to all <label> elements

Example:

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Bootstrap 4 Forms

In Bootstrap4, form controls automatically receive some global styling with Bootstrap.

All textual <input>, <textarea>, and <select> elements with class .form-control have a width of 100%.

Stacked (full-width) form:

Bootstrap 4 provides full width stacked forms.

Example:

Let's take an example to create a stacked form with two input fields, one checkbox, and a submit button.

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