Font Awesome Examples

HTML

<link rel="stylesheet" href="//netdna.bootstrapcdn.com/font-awesome/4.0.3/css/font-awesome.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form id="contact_form" class="container form-hide" autocomplete="off" autocomplete="false" action="https://webto.salesforce.com/servlet/servlet.WebToLead?encoding=UTF-8" method="POST" style="background-color: #00AB8E">
              <label>First Name
                <span class="error">Please enter data.</span>
                <input id="tesFN first_name " maxlength="40" name="first_name" size="20" type="text" onkeyup="test()" required style="background-color: #30bda6"><i class="fa fa-check-circle" aria-hidden="true"></i>
              </label>
              <label>Last Name
                <input id="last_name" maxlength="80" name="last_name" size="20" type="text" onkeyup="test()" required style="background-color: #30bda6"><i class="fa fa-check-circle" aria-hidden="true"></i>
              </label>
              <label>Email
                <span class="error">Please enter a valid email address</span>
                <input id="email" maxlength="80" name="email" size="20" type="text" onkeyup="test()" required style="background-color: #30bda6"><i class="fa fa-times-circle-o" aria-hidden="true"></i>
              </label>
              <label>Phone
                <span class="error">Please enter a valid phone number</span>              
                <input id="phone" maxlength="80" name="phone" size="20" type="tel" onkeyup="test()" required style="background-color: #30bda6"><i class="fa fa-check-circle" aria-hidden="true"></i>
              </label>
              <label>City
                <input id="city" name="city" maxlength="40" size="20" type="text" onkeyup="test()" required style="background-color: #30bda6"><i class="fa fa-check-circle" aria-hidden="true"></i>
              </label>
              <label>State/Province
                <input id="state" maxlength="20"...

CSS

body {
  color: #fff;
  background-color: #30bda6;
  text-align: center;
}

form {
  color: #fff;
  background-color: #f78e2a;
  text-align: center;
  font-family: Lato;
}

* {
  box-sizing: border-box;
}

.form-title {
  font-size: 38px;
  color: #fff;
  font-family: "Lato";
  letter-spacing: 70px;
}

input {
  font-size: 15px;
  height: 48px;
  margin-top: 8px;
  color: #333;
}

input[type="tel"] {
  width: 100%;
  padding: 10px;
  background-color: #f9a558;
  border: 1px solid #fff;
  font-size: 15px;
  height: 48px;
  color: #333;

}
input[type="text"] {
  width: 100%;
  padding: 10px;
  background-color: #f9a558;
  border: 1px solid #fff;
  font-size: 15px;
  color: #333;

}

input:focus {
  background-color: #fff;
}


input[type="text"]:focus {
  background-color: #fff;
}

input[type="text"]:visited {
  background-color: #fff;
}

input[type="tel"]:focus {
  background-color: #fff;
}

input[type="tel"]:visited {
  background-color: #fff;
}

.container {
  display: flex;
  flex-direction: column;
  padding: 5px 0;
}

textarea {
  width: 100%;
  background-color: #f9a558;
  border: 1px solid #fff;
  color: #333;
  font-family: Lato;
}

textarea:focus {
  background-color: #fff;
}

#co {
  flex-basis: 100%;
  max-width: 100%;
}

label:nth-last-child(-n+2) {
  flex-basis: 100%;
  max-width: 100%;
}

select,
label {
  height: 50px;
  width: 48%;
  margin: 2% 1%;
  text-align: left;
  font-family: "Lato";
  font-size: 15px;
}

#sub {
  border-radius: 6px;
  width: 120px;
  height: 35px;
  text-transform: uppercase;
  display: block;
  margin-top: 48px;
  font-size: 16px;
  font-family: Lato;
  border: none;
}

#sub2 {
  border-radius: 6px;
  width: 120px;
  height: 35px;
  text-transform: uppercase;
  display: block;
  margin-top: 48px;
  font-size: 16px;
  font-family: Lato;
  border: none;
}


label {
  position: relative;
}

.fa {
  position: absolute;
  bottom: 0;
  right: 0;
  transform: translate(-50%, 65%);
  opacity: 0;
  transition: opacity .5s, color...

JavaScript

function phoneNumber(phone)  {
  var phoneno = /^\d{9,11}$/;

  console.log("PHONE: "+phoneno.test(phone));
  return phoneno.test(phone);
}

$('input[type="tel"]').on('keyup', function() {
  var $label = $(this).closest('label');
  if ($(this).val().trim() != '') {
    if ($(this).is('#phone')) {
      if (phoneNumber($(this).val())) {
        $label.attr('data-valid', 'valid');
         $(this).next("i").removeClass("fa-times-circle-o").addClass("fa-check-circle");
      } else {
        $label.attr('data-valid', 'error');
         $(this).next("i").removeClass("fa-check-circle").addClass("fa-times-circle-o");
      }
    } else {
      $label.attr('data-valid', 'valid');
    }
  } else {
    $label.removeAttr('data-valid');

  }
});



function validateEmail(email) {
  var re = /^(([^<>()[\]\\.,;:\s@\"]+(\.[^<>()[\]\\.,;:\s@\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;

  console.log("email: "+re.test(email));
  return re.test(email);
}

$('input[type="text"]').on('keyup', function() {
  var $label = $(this).closest('label');
  if ($(this).val().trim() != '') {
    if ($(this).is('#email')) {
      if (validateEmail($(this).val())) {
        $label.attr('data-valid', 'valid');
        $(this).next("i").removeClass("fa-times-circle-o").addClass("fa-check-circle");
        
      } else {
        $label.attr('data-valid', 'error');
         $(this).next("i").removeClass("fa-check-circle").addClass("fa-times-circle-o");
      }
    } else {
      $label.attr('data-valid', 'valid');
    }
  } else {
    $label.removeAttr('data-valid');
  }

});


test = function() {
  if ($("#first_name").val()
      && $("#last_name").val()
      && (validateEmail($("#email").val()))
      && (phoneNumber($("#phone").val()))
      && $("#phone").val()
      && $("#city").val()
      && $("#state").val()
      && $("#company").val()
      && $("#comments").val()) {
    
    $("#sub").removeAttr("disabled") &&...