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HTML

              
                <h1>Accessible Form Demo</h1>

<form class="form" action="" method="POST" id="form_application" name="form_application" enctype="multipart/form-data">

	<p class="requiredField" style="padding-left: 2px;"><b>Required Fields <span class="requiredLabel">*</span></b></p>
	<hr />

  <fieldset id="availability_info">
		<legend>Availability Info</legend>
    <div class="form-field"> 
      <label id="label_available_date" for="form_application_available_date">Date available to work: <span class="requiredLabel">*</span></label><br />
      <input type="date" name="available_date" id="form_application_available_date" pattern="\d{1,2}/\d{1,2}/\d{4}" required placeholder="MM/DD/YYYY" />
    </div>
  </fieldset>

  <fieldset id="contact_info">
		<legend>Contact Info</legend>
    <div class="form-field"> 
      <label id="label_name" for="form_application_name">Name: <span class="requiredLabel">*</span></label></br />
      <input type="text" name="name" id="form_application_name" required placeholder="Your Name" size="30" maxlength="255" />
    </div>

    <div class="form-field">
        <label id="label_3dc3f502c3" for="form_application_3dc3f502c3">Email: <span class="requiredLabel">*</span></label></br />
      <input type="email" name="3dc3f502c3" id="form_application_3dc3f502c3" required placeholder="email@domain.com" size="30" maxlength="255" />
      <input type="text" name="email" value="" aria-label="email" style="display: none;" aria-hidden="true" />
    </div>

    <div class="form-field">
      <label id="label_state" for="form_application_state">State: <span class="requiredLabel">*</span></label><br />
      <datalist id="form_application_state_list">
        <select name="state_select" title="State" id="form_application_state_select" required>
          <option value="" selected>-- Please Select --</option>
          <optgroup label="U.S. States">
            <option value="AL">Alabama</option>
            <option value="AK">Alaska</option>
            <option value="AZ">Arizona</option>
            <option value="AR">Arkansas</option>
            <option value="CA">California</option>
            <option value="CO">Colorado</option>
            <option value="CT">Connecticut</option>
            <option value="DE">Delaware</option>
            <option value="DC">District Of Columbia</option>
            <option value="FL">Florida</option>
            <option value="GA">Georgia</option>
            <option value="HI">Hawaii</option>
            <option value="ID">Idaho</option>
            <option value="IL">Illinois</option>
            <option value="IN">Indiana</option>
            <option value="IA">Iowa</option>
            <option value="KS">Kansas</option>
            <option value="KY">Kentucky</option>
            <option value="LA">Louisiana</option>
            <option value="ME">Maine</option>
            <option value="MD">Maryland</option>
            <option value="MA">Massachusetts</option>
            <option value="MI">Michigan</option>
            <option value="MN">Minnesota</option>
            <option value="MS">Mississippi</option>
            <option value="MO">Missouri</option>
            <option value="MT">Montana</option>
            <option value="NE">Nebraska</option>
            <option value="NV">Nevada</option>
            <option value="NH">New Hampshire</option>
            <option value="NJ">New Jersey</option>
            <option value="NM">New Mexico</option>
            <option value="NY">New York</option>
            <option value="NC">North Carolina</option>
            <option value="ND">North Dakota</option>
            <option value="OH">Ohio</option>
            <option value="OK">Oklahoma</option>
            <option value="OR">Oregon</option>
            <option value="PA">Pennsylvania</option>
            <option value="RI">Rhode Island</option>
            <option value="SC">South Carolina</option>
            <option value="SD">South Dakota</option>
            <option value="TN">Tennessee</option>
            <option value="TX">Texas</option>
            <option value="UT">Utah</option>
            <option value="VT">Vermont</option>
            <option value="VA">Virginia</option>
            <option value="WA">Washington</option>
            <option value="WV">West Virginia</option>
            <option value="WI">Wisconsin</option>
            <option value="WY">Wyoming</option>
          </optgroup>
          <optgroup label="Canadian Provinces">
            <option value="AB">Alberta</option>
            <option value="BC">British Columbia</option>
            <option value="MB">Manitoba</option>
            <option value="NB">New Brunswick</option>
            <option value="NL">Newfoundland and Labrador</option>
            <option value="NT">Northwest Territories</option>
            <option value="NS">Nova Scotia</option>
            <option value="NU">Nunavut</option>
            <option value="ON">Ontario</option>
            <option value="PE">Prince Edward Island</option>
            <option value="QC">Quebec</option>
            <option value="SK">Saskatchewan</option>
            <option value="YT">Yukon Territory</option>
          </optgroup>
        </select><br /><br />
        <em>If other, please specify:</em><br />
      </datalist>
      <input type="text" name="state_other" id="form_application_state" placeholder="Your State/Province" list="form_application_state_list" value="" size="20" maxlength="255" required />
    </div>

    <div class="form-field">
      <label id="label_zip" for="form_application_zip">Zip:</label></br />
      <input type="text" name="zip" id="form_application_zip" placeholder="#####" size="15" maxlength="50" pattern="^(?:[\d]{5}(-[\d]{4})?|([A-Za-z]\d[A-Za-z][ -]?\d[A-Za-z]\d))$" />
    </div>

    <div class="form-field">
      <label id="label_phonenumber" for="form_application_phonenumber">Phone: <span class="requiredLabel">*</span></label></br />
      <input type="tel" name="phonenumber" id="form_application_phonenumber" required placeholder="###-###-####" size="15" maxlength="50" />
    </div>

  </fieldset>
  <hr />
  <fieldset class="toggle form_application_qualifications_method_2 field-fl-l" id="education">
			<legend>Education</legend>
      <fieldset class="form-field">
        <legend>Did you graduate?:</legend>
<input type="radio" name="advanced_degree_graduate" value="Yes" id="form_application_advanced_degree_graduate_1" /> <label for="form_application_advanced_degree_graduate_1" style="font-weight: normal;">Yes</label> &nbsp; 
<input type="radio" name="advanced_degree_graduate" value="No" id="form_application_advanced_degree_graduate_2" /> <label for="form_application_advanced_degree_graduate_2" style="font-weight: normal;">No</label></fieldset>

  </fieldset>
	<fieldset id="agreement">
		<legend>Agreement</legend>
		<p><em>I certify that answers given herein are true and complete.</em></p>
		<p><em>I authorize investigation of all statements in this application for employment as may be necessary in arriving at any employment decision. I understand that this application is not and is not intended to be a contract of employment. If employed, I may terminate employment at any time for any reason, and the Company may terminate my employment at any time for any reason.</em></p>
		<p><em>If employment is obtained and it is discovered that false or misleading information has been given in my application or interview(s), I understand that this may result in discharge.</em></p>
		<fieldset class="form-field"><legend>Acceptance: <span class="requiredLabel">*</span></legend>
<input type="checkbox" name="truth_agreement[]" value="true" id="form_application_truth_agreement_1" required /> <label for="form_application_truth_agreement_1" style="font-weight: normal;">I Agree</label></fieldset>
<hr />
	</fieldset>

	<p>When finished, click <b>Submit Application</b> button below.</p>
	<p>&nbsp;</p>
	<p style="text-align: center;"><input type="submit" name="submit" value="Submit Application" aria-label="submit" style="font-size: 24px;" /></p>

	<p>&nbsp;</p>
	<p style="text-align: center;"><b><span class="api" aria-label="A P I">APi</span> Group Inc. IS AN EQUAL OPPORTUNITY EMPLOYER</b></p>

	</form>

<script type="text/gentle-template" id="form-errors">
  <div data-errors-when="patternMismatch" class="field-error">Invalid value.</div>
  <div data-errors-when="rangeOverflow" class="field-error">Invalid value.</div>
  <div data-errors-when="rangeUnderflow" class="field-error">Invalid value.</div>
  <div data-errors-when="stepMismatch" class="field-error">Invalid value.</div>
  <div data-errors-when="tooLong" class="field-error">Invalid value.</div>
  <div data-errors-when="typeMismatch" class="field-error">Invalid value.</div>
  <div data-errors-when="valueMissing" class="field-error">This field is required.</div>
</script>
              
            
!

CSS

              
                /* begin base styles */
@import url('//fonts.googleapis.com/css?family=Roboto:300,300italic,700,700italic');

html {
	/* Prevent font scaling in landscape while allowing user zoom */
	text-size-adjust: 100%;
	font-size: 16px;
	box-sizing: border-box;
}

body {
  font-family: 'Roboto', sans-serif;
	font-size: 1em;
	line-height: 1.4em;
  margin: 2em;
  color: #333;
  overflow-x: hidden;
}

.visuallyhidden {
	position: absolute;
	overflow: hidden;
	clip: rect(0 0 0 0);
	height: 1px;
	width: 1px;
	margin: -1px;
	padding: 0;
	border: 0;
}
/* end base styles */

.formresult {
	font-size: 1em;
	margin: 25px 0;
	padding: 15px;
	background-color: #fff;
	color: #000;
}
.displayOK { border: 1px solid #999; }
.displayErr { border: 2px solid #f00; }
.requiredLabel { color: #c00; font-weight: bold; }

.form {
	input,
	textarea,
	select {
		border: 1px solid #ccc;
		background-color: #fff;
		color: #000;
		margin: 0 0 2px 0;
		padding: 0.25em 0 0.25em 2px;
		max-width: 21em;
		font-size: inherit;
		line-height: normal;
		@media only screen and (max-width: 600px) {
			max-width: 100% !important;
			width: 100%;
		}
	}
	textarea {
		width: 100%;
	}
	select {
		padding: 0;
	}
	input[type=submit],
	input[type=button] {
		padding: 4px 6px;
		font-size: 1.2em;
		font-weight: bold;
		background-color: #eee;
		@media only screen and (max-width: 600px) {
			width: auto;
		}
	}
	input[type=radio],
	input[type=checkbox],
	input[type=image] {
		display: inline;
		border: none;
		background: none;
		@media only screen and (max-width: 600px) {
			width: auto;
		}
	}
	.requiredField { border-left: 3px solid #c00; }
	input[required],
	select[required],
	textarea[required] {
		border-top: 2px solid #ccc;
		border-left: 3px solid #c00;
	}
	label {
		//display: block;
		font-weight: bold;
	}
	fieldset {
		margin: 1em 0;
		border: none;
		width: auto;
		padding: 0;
	}
	legend {
		font-weight: bold;
		font-size: 1.5em;
		margin: 0.5em 0;
		line-height: 1.5em;
	}
	fieldset fieldset {
		legend {
			font-size: 1em;
			margin: 0;
			line-height: 1em;
		}
	}
	input,
	textarea {
		&::placeholder {
			color: #888;
			font-style: italic;
			&:focus {
				color: inherit;
				font-style: inherit;
			}
		}
	}
	.form-field {
		margin: 1em 0;
	}
  .field-error {
    //display: none;
    color: #c00;
  }
}

              
            
!

JS

              
                window.addEventListener('DOMContentLoaded', function() {
  //fix required datalists
  fixRequiredDatalists('form_application');
  //enable accessibility
  enableFormAccessibility('form_application');
});

function fixRequiredDatalists(formId) {
  $('#'+formId+' datalist').each(function() {
    if (!$(this).is('visible')) {
      var datalistId = this.id;
      var fieldsetId = this.id.substring(0, this.id.length - ('_list').length);
      var selectId = fieldsetId+'_select';
      var inputId = fieldsetId;
      if ($('#'+selectId).prop('required') && $('#'+inputId).prop('required')) {
        var $inputs = $('#'+selectId+',#'+inputId);
        $inputs.on('input', function () {
          // Set the required property of the other input to false if this input is not empty.
          $inputs.not(this).prop('required', !$(this).val().length);
        });
      }
    }
  });
}

function enableFormAccessibility(formId) {
  var form = document.getElementById(formId);

  //add aria hints and error placeholders
  $('#'+formId+' *').filter(':input:visible').each(function() {
    //console.log(this.id);
    if (this.placeholder && this.placeholder.length > 0) {
      //add aria hints equal to placeholder text
      $('<div id="'+this.name+'_hint" class="visuallyhidden">'+this.placeholder+'</div>').insertBefore( $(this));
      $(this).attr('aria-describedby', this.name+'_hint');
    }

    //add error message placeholders
    $('<div data-errors-for="'+this.name+'" data-include="form-errors"></div>').insertBefore( $(this));
  });

  //disable browser form validation for GentleForm
  $('#'+formId).attr('novalidate', '');

  //enable GentleForm
  GentleForm(form, function onSubmit (event) {
    if (this.isValid()) {
      //form is valid
      return true;
    } else {
      //form is invalid
      event.preventDefault();
      $("input.is-invalid").first().focus();
    }
  });
}

              
            
!
999px

Console