Comment faire en sorte qu'un DIV se développe vers le haut plutôt que vers le bas ?

Question

Au survol d'une division, celle-ci doit passer au-dessus de l'image d'arrière-plan ci-dessus et afficher un texte supplémentaire. En outre, l'image d'arrière-plan change.

Pour l'instant, le DIV semble vouloir s'étendre uniquement vers le bas, mais j'aimerais vraiment qu'il s'étende vers le haut. Mais voici le problème : je ne peux pas utiliser la fonction position: fixed car l'élément doit défiler avec la page et ne pas rester en bas.

Voici ce que j'ai jusqu'à présent :

  $('#hover-01').on('mouseenter', function() {
    $('#hover-change').css('background-image', 'url(http://www.w3schools.com/css/trolltunga.jpg)');
  });
  $('#hover-01').on('mouseleave', function() {
    $('#hover-change').css('background-image', 'url(https://www.nasa.gov/sites/default/files/styles/image_card_4x3_ratio/public/thumbnails/image/leisa_christmas_false_color.png?itok=Jxf0IlS4)');
  });

  $('#hover-02').on('mouseenter', function() {
    $('#hover-change').css('background-image', 'url(http://www.w3schools.com/css/trolltunga.jpg)');
  });
  $('#hover-02').on('mouseleave', function() {
    $('#hover-change').css('background-image', 'url(https://www.nasa.gov/sites/default/files/styles/image_card_4x3_ratio/public/thumbnails/image/leisa_christmas_false_color.png?itok=Jxf0IlS4)');
  });

  $('#hover-03').on('mouseenter', function() {
    $('#hover-change').css('background-image', 'url(http://www.w3schools.com/css/trolltunga.jpg)');
  });
  $('#hover-03').on('mouseleave', function() {
    $('#hover-change').css('background-image', 'url(https://www.nasa.gov/sites/default/files/styles/image_card_4x3_ratio/public/thumbnails/image/leisa_christmas_false_color.png?itok=Jxf0IlS4)');
  });

.wrapper {
  position: relative;
}

#hover-change {
  width: 100%;
  height: 300px;
  background-image: url("http://www.w3schools.com/css/trolltunga.jpg");
  background-repeat: no-repeat;
}

@import url(https://fonts.googleapis.com/css?family=Merriweather);

* {
  box-sizing: border-box;
}

body {
  font-family: 'Merriweather', serif;
  padding: 20px;
}

a {
  color: #f06d06;
  text-decoration: none;
}

.box {
  padding: 2em;
  border: 1px solid #ccc;
  display: block;
  width: 33%;
  height: 150px;
  float: left;
  margin: -1px 0 0 -1px;
  color: black;
  background: linear-gradient(white, white 50%, #333 50%, #333);
  background-size: 100% 202%;
  transition: all 0.2s ease;
  animation: down-bump 0.4s ease;
  position: absolute;
  margin-top: -150px;
  overflow: hidden;

}

.box h2 {
  font-weight: 400;
  letter-spacing: -1.5px;
  line-height: 1.2;
}

.box h3 {
  font: 0.8em "Lucida Grande", serif;
}

.box:hover {
  background-position: 100% 100%;
  animation: up-bump 0.4s ease;
  height: 400px;
}

.box:hover h2 {
  color: #48ad26;
}

.box:hover h2 span {
  color: white;
}

.box:hover h3 {
  color: #999;
}

.box2 {
  padding: 2em;
  border: 1px solid #ccc;
  display: block;
  width: 33%;
  height: 150px;
  float: right;
  margin: -1px 0 0 -1px;
  color: black;
  background: linear-gradient(white, white 50%, #333 50%, #333);
  background-size: 100% 202%;
  transition: all 0.2s ease;
  animation: down-bump 0.4s ease;
  position: absolute;
  margin-top: -150px;
  margin-left: 33%;
  overflow: hidden;

}

.box2 h2 {
  font-weight: 400;
  letter-spacing: -1.5px;
  line-height: 1.2;
}

.box2 h3 {
  font: 0.8em "Lucida Grande", serif;
}

.box2:hover {
  background-position: 100% 100%;
  animation: up-bump 0.4s ease;
  height: 400px;
}

.box2:hover h2 {
  color: #48ad26;
}

.box2:hover h2 span {
  color: white;
}

.box2:hover h3 {
  color: #999;
}

.box3 {
  padding: 2em;
  border: 1px solid #ccc;
  display: block;
  width: 33%;
  height: 150px;
  float: right;
  margin: -1px 0 0 -1px;
  color: black;
  background: linear-gradient(white, white 50%, #333 50%, #333);
  background-size: 100% 202%;
  transition: all 0.2s ease;
  animation: down-bump 0.4s ease;
  position: absolute;
  margin-top: -150px;
  margin-left: 66%;
  overflow: hidden;

}

.box3 h2 {
  font-weight: 400;
  letter-spacing: -1.5px;
  line-height: 1.2;
}

.box3 h3 {
  font: 0.8em "Lucida Grande", serif;
}

.box3:hover {
  background-position: 100% 100%;
  animation: up-bump 0.4s ease;
  height: 400px;
}

.box3:hover h2 {
  color: #48ad26;
}

.box3:hover h2 span {
  color: white;
}

.box3:hover h3 {
  color: #999;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<div class="wrapper">

</div>
<div class="responsive-section-image" id="hover-change">
  <div class="overlay"></div>
</div>
<div class="box">
  <a id="hover-01" class="open-project" href="#">
    <h2><span>Lunch -</span> is delicious anytime</h2>
    <h3>Even after dinner</h3>
    <p>
      test content test content
      test content test content
      test content test content
      test content test content
    </p>
  </a>
</div>
<div class="box2">
  <a id="hover-02" class="open-project" href="#">
    <h2><span>Lunch -</span> is delicious anytime</h2>
    <h3>Even after dinner</h3>
    <p>
      test content test content
      test content test content
      test content test content
      test content test content
    </p>
  </a>
</div>
<div class="box3">
  <a id="hover-03" class="open-project" href="#">
    <h2><span>Lunch -</span> is delicious anytime</h2>
    <h3>Even after dinner</h3>
    <p>
      test content test content
      test content test content
      test content test content
      test content test content
    </p>
  </a>
</div>

</div>