diff --git a/htdocs/core/lib/project.lib.php b/htdocs/core/lib/project.lib.php
index 37e859f5ad9..eaad83d1150 100644
--- a/htdocs/core/lib/project.lib.php
+++ b/htdocs/core/lib/project.lib.php
@@ -1383,7 +1383,7 @@ function projectLinesPerAction(&$inc, $parent, $fuser, $lines, &$level, &$projec
 			print $taskstatic->getNomUrl(1, 'withproject', 'time');
 			// Label task
 			print '<br>';
-			print '<div class="opacitymedium tdoverflowmax500" title="'.dol_escape_htmltag($taskstatic->label).'">'.dol_escape_htmltag($taskstatic->label).'</div>';
+			print '<div class="opacitymedium tdoverflowmax400 small" title="'.dol_escape_htmltag($taskstatic->label).'">'.dol_escape_htmltag($taskstatic->label).'</div>';
 			for ($k = 0; $k < $level; $k++) {
 				print "</div>";
 			}
@@ -1707,7 +1707,7 @@ function projectLinesPerDay(&$inc, $parent, $fuser, $lines, &$level, &$projectsr
 				print $taskstatic->getNomUrl(1, 'withproject', 'time');
 				// Label task
 				print '<br>';
-				print '<div class="opacitymedium tdoverflowmax500" title="'.dol_escape_htmltag($taskstatic->label).'">'.dol_escape_htmltag($taskstatic->label).'</div>';
+				print '<div class="opacitymedium tdoverflowmax400 small" title="'.dol_escape_htmltag($taskstatic->label).'">'.dol_escape_htmltag($taskstatic->label).'</div>';
 				for ($k = 0; $k < $level; $k++) {
 					print "</div>";
 				}
@@ -2104,7 +2104,7 @@ function projectLinesPerWeek(&$inc, $firstdaytoshow, $fuser, $parent, $lines, &$
 				}
 
 				// Ref
-				print '<td class="tdoverflowmax300">';
+				print '<td>';
 				print '<!-- Task id = '.$lines[$i]->id.' (projectlinesperweek) -->';
 				for ($k = 0; $k < $level; $k++) {
 					print '<div class="marginleftonly">';
@@ -2112,7 +2112,7 @@ function projectLinesPerWeek(&$inc, $firstdaytoshow, $fuser, $parent, $lines, &$
 				print $taskstatic->getNomUrl(1, 'withproject', 'time');
 				// Label task
 				print '<br>';
-				print '<div class="opacitymedium tdoverflowmax500" title="'.dol_escape_htmltag($taskstatic->label).'">'.dol_escape_htmltag($taskstatic->label).'</div>';
+				print '<div class="opacitymedium tdoverflowmax400 small" title="'.dol_escape_htmltag($taskstatic->label).'">'.dol_escape_htmltag($taskstatic->label).'</div>';
 				for ($k = 0; $k < $level; $k++) {
 					print "</div>";
 				}
@@ -2434,7 +2434,7 @@ function projectLinesPerMonth(&$inc, $firstdaytoshow, $fuser, $parent, $lines, &
 				print $taskstatic->getNomUrl(1, 'withproject', 'time');
 				// Label task
 				print '<br>';
-				print '<div class="opacitymedium tdoverflowmax500" title="'.dol_escape_htmltag($taskstatic->label).'">'.dol_escape_htmltag($taskstatic->label).'</div>';
+				print '<div class="opacitymedium tdoverflowmax400 small" title="'.dol_escape_htmltag($taskstatic->label).'">'.dol_escape_htmltag($taskstatic->label).'</div>';
 				for ($k = 0; $k < $level; $k++) {
 					print "</div>";
 				}