Individual form controls automatically receive some global styling. All textual <input>, <textarea>, and <select> elements with .form-control are set to width: 100%; by default. Wrap labels and controls in .form-group for optimum spacing.
Add .form-inline to your <form> for left-aligned and inline-block controls. This only applies to forms within viewports that are at least 768px wide.
Use Bootstrap's predefined grid classes to align labels and groups of form controls in a horizontal layout by adding .form-horizontal to the form. Doing so changes .form-groups to behave as grid rows, so no need for .row.
Examples of standard form controls supported in an example form layout.
Most common form control, text-based input fields. Includes support for all HTML5 types: text, password, datetime, datetime-local, date, month, time, week, number, email, url, search, tel, and color.
Form control which supports multiple lines of text. Change rows attribute as necessary.
Checkboxes are for selecting one or several options in a list while radios are for selecting one option from many.
Use the .checkbox-inline or .radio-inline classes on a series of checkboxes or radios for controls that appear on the same line.
Use the default option, or add multiple to show multiple options at once.
When you need to place plain text next to a form label within a horizontal form, use the .form-control-static class on a <p>.
We remove the default outline styles on some form controls and apply a box-shadow in its place for :focus.
:focus博乐成盛弘科技有限公司The above example input uses custom styles in our documentation to demonstrate the :focus state on a .form-control.
Bootstrap includes validation styles for error, warning, and success states on form controls. To use, add .has-warning, .has-error, or .has-success to the parent element. Any .control-label, .form-control, and .help-block within that element will receive the validation styles.
Set heights using classes like .input-lg, and set widths using grid column classes like .col-lg-*.
Create taller or shorter form controls that match button sizes.Border radius can be changed using .border-radius class.
Wrap inputs in grid columns, or any custom parent element, to easily enforce desired widths.
Block level help text for form controls.