<!-- Button -->
<div class="page-wrapper">
  <a class="btn trigger" href="#">click me</a>
</div>

<!-- Modal -->
<div class="modal-wrapper">
  <div class="modal">
    <div class="head">
      <a class="btn-close trigger" href="#">
        <i class="fa fa-times" aria-hidden="true"></i>
      </a>
    </div>
    <div class="content">
        <div class="good-job">
          <i class="fa fa-thumbs-o-up" aria-hidden="true"></i>
          <h1>Good Job!</h1>
        </div>
    </div>
  </div>
</div>
@import url(https://fonts.googleapis.com/css?family=Montserrat:400,700);

html, body {
  width: 100%;
  height: 100%;
  margin: 0;
}

.page-wrapper {
  width: 100%;
  height: 100%;
  background: url(https://goo.gl/OeVhun) center no-repeat;
  background-size: cover;
}

.blur-it {
  filter: blur(4px);
}

a.btn {
  width: 200px;
  padding: 18px 0;
  position: absolute;
  top: 50%; 
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: 'Montserrat', Arial, Helvetica, sans-serif;
  font-weight: 700;
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
  color: #fff;
  border-radius: 0;
  background: #e2525c;
}

.modal-wrapper {
  width: 100%;
  height: 100%;
  position: fixed;
  top: 0; 
  left: 0;
  background: rgba(41, 171, 164, 0.8);
  visibility: hidden;
  opacity: 0;
  transition: all 0.25s ease-in-out;
}

.modal-wrapper.open {
  opacity: 1;
  visibility: visible;
}

.modal {
  width: 600px;
  height: 400px;
  display: block;
  margin: 50% 0 0 -300px;
  position: relative;
  top: 50%; 
  left: 50%;
  background: #fff;
  opacity: 0;
  transition: all 0.5s ease-in-out;
}

.modal-wrapper.open .modal {
  margin-top: -200px;
  opacity: 1;
}

.head { 
  width: 90%;
  height: 32px;
  padding: 12px 30px;
  overflow: hidden;
  background: #e2525c;
}

.btn-close {
  font-size: 28px;
  display: block;
  float: right;
  color: #fff;
}

.content {
  padding: 10%;
}

.good-job {
  text-align: center;
  font-family: 'Montserrat', Arial,       Helvetica, sans-serif;
  color: #e2525c;
}
.good-job .fa-thumbs-o-up {
  font-size: 60px;
}
.good-job h1 {
  font-size: 45px;
}
$( document ).ready(function() {
  $('.trigger').on('click', function() {
     $('.modal-wrapper').toggleClass('open');
    $('.page-wrapper').toggleClass('blur-it');
     return false;
  });
});
Run Pen

External CSS

  1. https://maxcdn.bootstrapcdn.com/font-awesome/4.6.3/css/font-awesome.min.css

External JavaScript

  1. https://code.jquery.com/jquery-2.2.4.min.js