<form><div class="form-row"><div class="col-md-6 mb-3"><label for="validationDefault01">First name</label><input type="text"class="form-control"id="validationDefault01"required></div><div class="col-md-6 mb-3"><label for="validationDefault02">Last name</label><input type="text"class="form-control"id="validationDefault02"required></div><div class="col-md-6 mb-3"><label for="validationDefaultUsername">Username</label><div class="input-group"><div class="input-group-prepend"><span class="input-group-text"id="inputGroupPrepend2">@</span></div><input type="text"class="form-control"id="validationDefaultUsername"aria-describedby="inputGroupPrepend2"required></div></div><div class="col-md-6 mb-3"><label for="validationDefault03">City</label><input type="text"class="form-control"id="validationDefault03"required></div><div class="col-md-6 mb-3"><label for="validationDefault04">State</label><select class="form-control"id="validationDefault04"required><option selected disabled value="">Choose...</option><option>...</option></select></div><div class="col-md-6 mb-3"><label for="validationDefault05">Zip</label><input type="text"class="form-control"id="validationDefault05"required></div></div><div class="form-group"><div class="form-check"><input class="form-check-input"type="checkbox"value=""id="invalidCheck2"required><label class="form-check-label"for="invalidCheck2">Agree to terms and conditions </label></div></div><div class="form-group"><button class="btn btn-primary"type="submit">Submit form</button></div></form>

<form class="was-validated"><div class="mb-3"><label for="validationTextarea">Textarea</label><textarea class="form-control is-invalid"id="validationTextarea"placeholder="Required example textarea"required></textarea><div class="invalid-feedback">Please enter a message in the textarea. </div></div><div class="custom-control custom-checkbox mb-3"><input type="checkbox"class="custom-control-input"id="customControlValidation1"required><label class="custom-control-label"for="customControlValidation1">Check this custom checkbox</label><div class="invalid-feedback">Example invalid feedback text</div></div><div class="custom-control custom-radio"><input type="radio"class="custom-control-input"id="customControlValidation2"name="radio-stacked"required><label class="custom-control-label"for="customControlValidation2">Toggle this custom radio</label></div><div class="custom-control custom-radio mb-3"><input type="radio"class="custom-control-input"id="customControlValidation3"name="radio-stacked"required><label class="custom-control-label"for="customControlValidation3">Or toggle this other custom radio</label><div class="invalid-feedback">More example invalid feedback text</div></div><div class="form-group"><select class="custom-select"required><option value="">Open this select menu</option><option value="1">One</option><option value="2">Two</option><option value="3">Three</option></select><div class="invalid-feedback">Example invalid custom select feedback</div></div><div class="custom-file"><input type="file"class="custom-file-input"id="validatedCustomFile"required><label class="custom-file-label"for="validatedCustomFile">Choose file...</label><div class="invalid-feedback">Example invalid custom file feedback</div></div></form>

<form class="needs-validation"novalidate><div class="form-row"><div class="col-md-6 mb-3"><label for="validationCustom01">First name</label><input type="text"class="form-control"id="validationCustom01"required><div class="valid-feedback">Looks good!</div></div><div class="col-md-6 mb-3"><label for="validationCustom02">Last name</label><input type="text"class="form-control"id="validationCustom02"required><div class="valid-feedback">Looks good!</div></div><div class="col-md-6 mb-3"><label for="validationCustomUsername">Username</label><div class="input-group"><div class="input-group-prepend"><span class="input-group-text"id="inputGroupPrepend">@</span></div><input type="text"class="form-control"id="validationCustomUsername"aria-describedby="inputGroupPrepend"required><div class="invalid-feedback">Please choose a username. </div></div></div><div class="col-md-6 mb-3"><label for="validationCustom03">City</label><input type="text"class="form-control"id="validationCustom03"required><div class="invalid-feedback">Please provide a valid city. </div></div><div class="col-md-6 mb-3"><label for="validationCustom04">State</label><select class="form-control"id="validationCustom04"required><option selected disabled value="">Choose...</option><option>...</option></select><div class="invalid-feedback">Please select a valid state. </div></div><div class="col-md-6 mb-3"><label for="validationCustom05">Zip</label><input type="text"class="form-control"id="validationCustom05"required><div class="invalid-feedback">Please provide a valid zip. </div></div></div><div class="form-group"><div class="form-check"><input class="form-check-input"type="checkbox"value=""id="invalidCheck"required><label class="form-check-label"for="invalidCheck">Agree to terms and conditions </label><div class="invalid-feedback">You must agree before submitting. </div></div></div><button class="btn btn-primary"type="submit">Submit form</button></form>

<form class="needs-validation"novalidate><div class="form-row"><div class="col-md-6 mb-3"><label for="validationTooltip01">First name</label><input type="text"class="form-control"id="validationTooltip01"value="Mark"required><div class="valid-tooltip">Looks good!</div></div><div class="col-md-6 mb-3"><label for="validationTooltip02">Last name</label><input type="text"class="form-control"id="validationTooltip02"value="Tech"required><div class="valid-tooltip">Looks good!</div></div><div class="col-md-6 mb-3"><label for="validationTooltipUsername">Username</label><div class="input-group"><div class="input-group-prepend"><span class="input-group-text"id="validationTooltipUsernamePrepend">@</span></div><input type="text"class="form-control"id="validationTooltipUsername"aria-describedby="validationTooltipUsernamePrepend"required><div class="invalid-tooltip">Please choose a unique and valid username. </div></div></div><div class="col-md-6 mb-3"><label for="validationTooltip03">City</label><input type="text"class="form-control"id="validationTooltip03"required><div class="invalid-tooltip">Please provide a valid city. </div></div><div class="col-md-6 mb-3"><label for="validationTooltip04">State</label><select class="form-control"id="validationTooltip04"required><option selected disabled value="">Choose...</option><option>...</option></select><div class="invalid-tooltip">Please select a valid state. </div></div><div class="col-md-6 mb-3"><label for="validationTooltip05">Zip</label><input type="text"class="form-control"id="validationTooltip05"required><div class="invalid-tooltip">Please provide a valid zip. </div></div></div><button class="btn btn-primary"type="submit">Submit form</button></form>