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### Validation Forms

##### Custom styles

For custom Bootstrap form validation messages, you’ll need to add the `novalidate` boolean attribute to your `<form>`. This disables the browser default feedback tooltips, but still provides access to the form validation APIs in JavaScript. Try to submit the form below; our JavaScript will intercept the submit button and relay feedback to you.When attempting to submit, you’ll see the `:invalid` and `:valid` styles applied to your form controls.
First name
Looks good!
Last name
Looks good!
Username
@
Please choose a username.
City
Please provide a valid city.
State
Please select a valid state.
Zip
Please provide a valid zip.
Agree to terms and conditions
You must agree before submitting.

##### Browser defaults

Not interested in custom validation feedback messages or writing JavaScript to change form behaviors? All good, you can use the browser defaults. Try submitting the form below. Depending on your browser and OS, you’ll see a slightly different style of feedback.While these feedback styles cannot be styled with CSS, you can still customize the feedback text through JavaScript.
First name
Last name
Username
@
City
State
Zip
Agree to terms and conditions

##### Supported elements

Not interested in custom validation feedback messages or writing JavaScript to change form behaviors? All good, you can use the browser defaults. Try submitting the form below. Depending on your browser and OS, you’ll see a slightly different style of feedback.While these feedback styles cannot be styled with CSS, you can still customize the feedback text through JavaScript.
Textarea
Please enter a message in the textarea.
Check this checkbox
Example invalid feedback text
Toggle this radio
Or toggle this other radio
More example invalid feedback text
Example invalid select feedback
Example invalid form file feedback

##### Tooltips

If your form layout allows it, you can swap the `.{valid|invalid}-feedback` classes for `.{valid|invalid}-tooltip` classes to display validation feedback in a styled tooltip. Be sure to have a parent with `position: relative` on it for tooltip positioning. In the example below, our column classes have this already, but your project may require an alternative setup.
First name
Looks good!
Last name
Looks good!
Username
@
Please choose a unique and valid username.
City
Please provide a valid city.
State
Please select a valid state.
Zip
Please provide a valid zip.