diff --git a/CHANGELOG.md b/CHANGELOG.md
index 25c713297a53a94122573713fbb587162fff3bb4..f40ba9c69e75e70c340d34b359a897f840df6fdb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -68,7 +68,13 @@ Ajout d'un bouton en haut de page pour éditer le parcours, visible uniquement p
 
 #### Description des sections
 
-[ ] Revoir l'apparence de la description des sections. 
+[x] Revoir l'apparence de la description des sections. 
+
+#### Description pliantes
+
+[x] Les descriptions de parcours et de section se plient si elles sont trop longues et un petit icon permet de les déplier pour les lire entièrement. 
+
+Elles ne s'affichent pas si elles sont vides. 
 
 ### Gestion des droits
 
@@ -90,6 +96,8 @@ Amélioration des textes sur les pages de liste et d'édition des parcours.
 
 Attention : actuellement, on peut ajouter plusieurs fois le même élément ce qui créée des erreurs. 
 
+Ne fonctionne pas sur firefox. Bien tester sur tous les navigateurs. 
+
 ### Bloc en lui-même
 
 #### Amélioration de l'apparence de la liste
diff --git a/career_unit.php b/career_unit.php
index 9a79b997f63bc3e5240d836e080290d994f501de..5d8ebd3769e0ecddc38cc4f53835f47338bae359 100644
--- a/career_unit.php
+++ b/career_unit.php
@@ -13,17 +13,13 @@
 	$PAGE->set_pagelayout('course');
 	$PAGE->set_url($url);
 	
-	// Getting DB data for the course
 	$course = $DB->get_record('course', array('id' => $requete->course), '*', MUST_EXIST);
-	// Must be logged in
 	require_login($course, false, NULL);
 	
 	$PAGE->set_title(get_string('title_plugin', 'block_career'));
 	$PAGE->set_heading($OUTPUT->heading($COURSE->fullname, 2, 'headingblock header outline'));
 	echo $OUTPUT->header();
-	// $PAGE->requires->js("/blocks/career/js/jquery.min.js");
-	// $PAGE->requires->js("/blocks/career/js/file.js");
-	// echo "<link rel=\"stylesheet\" type=\"text/css\" href=\"styles.css\">";
+	$PAGE->requires->js("/blocks/career/js/sect-descr.js");
 	
 	require_once('view/view_career_unit.php');
 	
diff --git "a/img/Capture d\342\200\231\303\251cran 2018-06-19 \303\240 18.18.32.png" "b/img/Capture d\342\200\231\303\251cran 2018-06-19 \303\240 18.18.32.png"
deleted file mode 100644
index 963a9293ae1d940adcd2134b65a095392119cc60..0000000000000000000000000000000000000000
Binary files "a/img/Capture d\342\200\231\303\251cran 2018-06-19 \303\240 18.18.32.png" and /dev/null differ
diff --git a/img/file.txt b/img/file.txt
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/img/numoc-16-9-blanc.png b/img/numoc-16-9-blanc.png
deleted file mode 100644
index e877fb5f7e5d52c439bdcf5882a2f1ce4c429d93..0000000000000000000000000000000000000000
Binary files a/img/numoc-16-9-blanc.png and /dev/null differ
diff --git a/img/rose-rose.jpg b/img/rose-rose.jpg
deleted file mode 100644
index 77b23e9704a58b1ec1c5399d56357d600c9b3546..0000000000000000000000000000000000000000
Binary files a/img/rose-rose.jpg and /dev/null differ
diff --git a/js/sect-descr.js b/js/sect-descr.js
new file mode 100644
index 0000000000000000000000000000000000000000..a86315390cd22d67cdbcb72d2f9fd3b2ff421985
--- /dev/null
+++ b/js/sect-descr.js
@@ -0,0 +1,36 @@
+;(function () {
+
+	/* Descriptions */
+	var descr_area = document.querySelectorAll('.career-descr-fold');
+	/* Links to expand description if it has been folded */
+	var descr_icons = document.querySelectorAll('.career-descr-fold-icon');
+
+	/* If > 175px (too big) => change to 150px + link to unfold to normal size. */
+	for (var i = 0; i < descr_area.length; i++) {
+		var height = descr_area[i].offsetHeight
+		if (height > 175) {
+			descr_area[i].dataset.foldsize = "small"
+		} else {
+			var icon = descr_area[i].querySelector('.career-descr-fold-icon');
+			icon.setAttribute('hidden', 'hidden');
+		}
+	}
+
+	/* onclick on link => target parent section descr and change the foldsize attribute to cause css changes (unfold & icon) */
+	for (var i = 0; i < descr_icons.length; i++) {
+		descr_icons[i].onclick = function(e) {
+			e.preventDefault();
+			var target = e.target;
+			while ( target ) {
+				if (target.getAttribute('class') != null){
+					if (target.getAttribute('class').indexOf('career-descr career-descr-fold') > -1) {
+						break;
+					}
+				}
+				target = target.parentNode;
+			}
+			target.dataset.foldsize == "small" ? target.dataset.foldsize = 'full' : target.dataset.foldsize = 'small'; 
+		}
+	}
+
+})();
\ No newline at end of file
diff --git a/styles.css b/styles.css
index 5515d94f77c713705e54dd4e237a5d704e2833be..45f670aaf6afa8198f578544bafd3ccb4b87df0d 100644
--- a/styles.css
+++ b/styles.css
@@ -6,17 +6,59 @@
 .career-section-title > h3 {
 	color: #fafafa;
 	padding: 0.6rem 1rem;
+	margin-bottom: 0;
 }
 
 .career-descr {
-    padding: .75rem 1.25rem;
-    margin-bottom: 1rem;
-    border: 0 solid transparent;
-    border-color: #f1f3f5;
+	padding: .75rem 1.25rem;
+	margin-bottom: 0;
+	border: 0 solid transparent;
+	border-color: #f1f3f5;
 	color: #6b6e71;
-    background-color: #f5f6f8;
+	background-color: #f5f6f8;
 }
 
+.career-descr-fold {
+	position: relative;
+	overflow: hidden;
+}
+
+.career-descr-fold[data-foldsize="small"] {
+	max-height: 150px;
+}
+
+.career-descr-fold-icon {
+	position: absolute;
+	bottom: 0.25rem;
+	right: 1rem;
+}
+
+.career-descr-fold-icon svg {
+	border-radius: 10em;
+	padding: 9px;
+	background-color: rgba(0, 129, 150, 0.7);
+	box-shadow: 0px 0px 2px 0px #d2d2d2;
+}
+
+.career-descr-fold-icon svg:hover {
+	background-color: rgba(0, 129, 150, 1);
+	box-shadow: 0px 0px 5px 1px #d2d2d2;
+}
+
+.career-descr-fold[data-foldsize="small"] .arraw_to_bottom {
+	display: initial;
+}
+.career-descr-fold[data-foldsize="small"] .arraw_to_top {
+	display: none;
+}
+.career-descr-fold[data-foldsize="full"] .arraw_to_bottom {
+	display: none;
+}
+.career-descr-fold[data-foldsize="full"] .arraw_to_top {
+	display: initial;
+}
+
+
 /* Path settings */
 .left_course_elements, .right_course_elements {
 	width: 33%;
diff --git a/view/view_career_unit.php b/view/view_career_unit.php
index 695349daf281d690ae020d4ea00ed8ccdb092819..ac7a244c3fdcc93e01e504d307cce9e231a6cd09 100644
--- a/view/view_career_unit.php
+++ b/view/view_career_unit.php
@@ -54,30 +54,42 @@ ksort($sections);
 $cours_url = $CFG->wwwroot . "/course/view.php?id=" . $COURSE->id;
 $edit_url = $CFG->wwwroot . "/blocks/career/career_setting.php?courseid=" . $COURSE->id . "&pathid=" . $careerId;
 
-?>
+function is_not_empty_string($str) {
+	$str_copy = $str;
+	$to_delete = array('<p>', '</p>', '<br>', '</br>', ' ');
+	$str_copy = str_replace($to_delete, '', $str_copy);
+	$str_copy = preg_replace('/\s+/', '', $str_copy);
+	if ( $str_copy != "" ) {
+		return true;
+	}
+	return false;
+}
 
+?>
 
 <section class="section">
 
-<?php if (has_capability('moodle/course:update', $context = context_course::instance($COURSE->id), $USER->id)): ?>
-	<a class="btn btn-warning" style="float: right; margin-left: 0.25rem;" href="<?php echo $edit_url; ?>">Éditer</a>
-<?php endif; ?>
+	<?php if (has_capability('moodle/course:update', $context = context_course::instance($COURSE->id), $USER->id)): ?>
+		<a class="btn btn-warning" style="float: right; margin-left: 0.25rem;" href="<?php echo $edit_url; ?>">Éditer</a>
+	<?php endif; ?>
 
 	<a class="btn btn-primary" style="float: right;" href="<?php echo $cours_url; ?>">Retour au cours</a>
-	<h2 class="display-4" style="clear: both;"><?=$titre;?></h2>
-
-	<div class="career-descr" style="clear: both;">
-		<?php echo $intro; ?>
-	</div>
+	<h2 class="display-4" style="clear: both;"><?php echo $titre; ?></h2>
+	<?php 
+	if ( is_not_empty_string($intro) ) {
+		echo "<div class='career-descr career-descr-fold' data-foldsize='full'>" . $intro . "<a href='#' class='career-descr-fold-icon'><svg xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' version='1.1' class='arraw_to_bottom' x='0px' y='0px' width='35px' height='35px' viewBox='0 0 451.847 451.847' style='enable-background:new 0 0 451.847 451.847;' xml:space='preserve'><g><path fill='white' d='M225.923,354.706c-8.098,0-16.195-3.092-22.369-9.263L9.27,151.157c-12.359-12.359-12.359-32.397,0-44.751   c12.354-12.354,32.388-12.354,44.748,0l171.905,171.915l171.906-171.909c12.359-12.354,32.391-12.354,44.744,0   c12.365,12.354,12.365,32.392,0,44.751L248.292,345.449C242.115,351.621,234.018,354.706,225.923,354.706z'></path></g></svg><svg xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' version='1.1' class='arraw_to_top' x='0px' y='0px' width='35px' height='35px' viewBox='0 0 451.847 451.846' style='enable-background:new 0 0 451.847 451.846;' xml:space='preserve'><g><path fill='white' d='M248.292,106.406l194.281,194.29c12.365,12.359,12.365,32.391,0,44.744c-12.354,12.354-32.391,12.354-44.744,0   L225.923,173.529L54.018,345.44c-12.36,12.354-32.395,12.354-44.748,0c-12.359-12.354-12.359-32.391,0-44.75L203.554,106.4   c6.18-6.174,14.271-9.259,22.369-9.259C234.018,97.141,242.115,100.232,248.292,106.406z'/></g></svg></a></div>"; 
+	}
+	?>
 	<?php foreach ($sections as $section) : ?>
 		<div style="margin-bottom: 0rem; margin-top: 1rem;">
 			<div class="career-section-title">
 				<h3><?php echo $section->name; ?></h3>
 			</div>
-			<div class="iena-career-description wrapper">
-				<?php echo $section->intro; ?>
-			</div>
-			<div class="list-group">
+			<?php 
+			if ( is_not_empty_string($section->intro) ) {
+				echo "<div class='career-descr career-descr-fold' data-foldsize='full'>" . $section->intro . "<a href='#' class='career-descr-fold-icon'><svg xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' version='1.1' class='arraw_to_bottom' x='0px' y='0px' width='35px' height='35px' viewBox='0 0 451.847 451.847' style='enable-background:new 0 0 451.847 451.847;' xml:space='preserve'><g><path fill='white' d='M225.923,354.706c-8.098,0-16.195-3.092-22.369-9.263L9.27,151.157c-12.359-12.359-12.359-32.397,0-44.751   c12.354-12.354,32.388-12.354,44.748,0l171.905,171.915l171.906-171.909c12.359-12.354,32.391-12.354,44.744,0   c12.365,12.354,12.365,32.392,0,44.751L248.292,345.449C242.115,351.621,234.018,354.706,225.923,354.706z'></path></g></svg><svg xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' version='1.1' class='arraw_to_top' x='0px' y='0px' width='35px' height='35px' viewBox='0 0 451.847 451.846' style='enable-background:new 0 0 451.847 451.846;' xml:space='preserve'><g><path fill='white' d='M248.292,106.406l194.281,194.29c12.365,12.359,12.365,32.391,0,44.744c-12.354,12.354-32.391,12.354-44.744,0   L225.923,173.529L54.018,345.44c-12.36,12.354-32.395,12.354-44.748,0c-12.359-12.354-12.359-32.391,0-44.75L203.554,106.4   c6.18-6.174,14.271-9.259,22.369-9.259C234.018,97.141,242.115,100.232,248.292,106.406z'/></g></svg></a></div>";
+			}?>
+			<div class="list-group" style="margin-top: 1rem;">
 				<?php foreach ($ressources as $value) : ?>
 					<?php if($value->section->id == $section->id) : ?>
 						<a href="<?php echo "$value->link&career=$careerId" ?>" class="list-group-item list-group-item-action flex-column align-items-start">
@@ -88,11 +100,7 @@ $edit_url = $CFG->wwwroot . "/blocks/career/career_setting.php?courseid=" . $COU
 								<img class="" alt="" src="<?php echo $CFG->wwwroot ?>/theme/image.php/boost/<?php echo $value->type ?>/1/icon>">
 							</div>
 							<?php 
-							$descr = $value->descrition;
-							$to_delete = array('<p>', '</p>', '<br>', '</br>', ' ');
-							$descr = str_replace($to_delete, '', $descr);
-							$descr = preg_replace('/\s+/', '', $descr);
-							if ( $descr != "" ) {
+							if ( is_not_empty_string($value->descrition) ) {
 								echo "<div style='margin-top: 0.25rem;'>" . $value->descrition . "</div>";
 							}
 							?>