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Validation Forms
Form ElementsFor custom Bootstrap form validation messages, you’ll need to add the novalidate boolean attribute to your . 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.
Form validation
Tooltip message