diff --git a/web/skins/classic/css/base/views/timeline.css.php b/web/skins/classic/css/base/views/timeline.css.php
index 94c011e82..1bd45107b 100644
--- a/web/skins/classic/css/base/views/timeline.css.php
+++ b/web/skins/classic/css/base/views/timeline.css.php
@@ -17,20 +17,24 @@
 }
 
 .imageHeight {
+min-height: 
 <?php
-switch($max_aspect_ratio){
+switch ( $max_aspect_ratio ) {
   case 1:
     echo 'padding-top: 100%;'; break;
-  case 1.78:
-   echo 'padding-top: 56.25%;'; break;
-  case 1.33:
+  case 1.33: // 4:3
     echo 'padding-top: 75%;'; break;
-  case 1.5:
+  case 1.47:
+   echo 'padding-top: 68.18%;'; break;
+  case 1.5: // 3:2
     echo 'padding-top: 66.66%'; break;
-  case 1.6:
+  case 1.6: // 8:5
     echo 'padding-top: 62.5%'; break;
+  case 1.78: // 16:9
+   echo 'padding-top: 56.25%;'; break;
   default:
     ZM\Error("Unknown aspect ratio $max_aspect_ratio");
+    echo 'padding-top: 100%;';
 }
 ?>
 }
@@ -47,7 +51,7 @@ switch($max_aspect_ratio){
     height: <?php echo $chart['graph']['eventBarHeight'] ?>px;
 }
 <?php
-if ( $mode == "overlay" ) {
+if ( $mode == 'overlay' ) {
     foreach ( array_keys($monitors) as $monitorId ) {
 ?>
 #chartPanel .eventsPos<?php echo $monitorId ?> {
@@ -55,7 +59,7 @@ if ( $mode == "overlay" ) {
 }
 <?php
     }
-} else if ( $mode == "split" ) {
+} else if ( $mode == 'split' ) {
     foreach ( array_keys($monitors) as $monitorId ) {
 ?>
 #chartPanel .activityPos<?php echo $monitorId ?> {
diff --git a/web/skins/classic/views/timeline.php b/web/skins/classic/views/timeline.php
index 4b92ea94f..2fe419efd 100644
--- a/web/skins/classic/views/timeline.php
+++ b/web/skins/classic/views/timeline.php
@@ -248,11 +248,11 @@ $scales = array(
   array( 'name'=>'month',    'factor'=>60*60*24*30,  'align'=>1,  'zoomout'=>12,   'label'=>STRF_TL_AXIS_LABEL_MONTH ),
   array( 'name'=>'week',     'factor'=>60*60*24*7,   'align'=>1,  'zoomout'=>4.25, 'label'=>STRF_TL_AXIS_LABEL_WEEK,     'labelCheck'=>'%W' ),
   array( 'name'=>'day',      'factor'=>60*60*24,     'align'=>1,  'zoomout'=>7,    'label'=>STRF_TL_AXIS_LABEL_DAY ),
-  array( 'name'=>"hour4",    'factor'=>60*60,        'align'=>4,  'zoomout'=>6,    'label'=>STRF_TL_AXIS_LABEL_4HOUR,    'labelCheck'=>'%H' ),
+  array( 'name'=>'hour4',    'factor'=>60*60,        'align'=>4,  'zoomout'=>6,    'label'=>STRF_TL_AXIS_LABEL_4HOUR,    'labelCheck'=>'%H' ),
   array( 'name'=>'hour',     'factor'=>60*60,        'align'=>1,  'zoomout'=>4,    'label'=>STRF_TL_AXIS_LABEL_HOUR,     'labelCheck'=>'%H' ),
-  array( 'name'=>"minute10", 'factor'=>60,           'align'=>10, 'zoomout'=>6,    'label'=>STRF_TL_AXIS_LABEL_10MINUTE, 'labelCheck'=>'%M' ),
+  array( 'name'=>'minute10', 'factor'=>60,           'align'=>10, 'zoomout'=>6,    'label'=>STRF_TL_AXIS_LABEL_10MINUTE, 'labelCheck'=>'%M' ),
   array( 'name'=>'minute',   'factor'=>60,           'align'=>1,  'zoomout'=>10,   'label'=>STRF_TL_AXIS_LABEL_MINUTE,   'labelCheck'=>'%M' ),
-  array( 'name'=>"second10", 'factor'=>1,            'align'=>10, 'zoomout'=>6,    'label'=>STRF_TL_AXIS_LABEL_10SECOND ),
+  array( 'name'=>'second10', 'factor'=>1,            'align'=>10, 'zoomout'=>6,    'label'=>STRF_TL_AXIS_LABEL_10SECOND ),
   array( 'name'=>'second',   'factor'=>1,            'align'=>1,  'zoomout'=>10,   'label'=>STRF_TL_AXIS_LABEL_SECOND ),
 );
 
@@ -632,7 +632,7 @@ function drawXGrid( $chart, $scale, $labelClass, $tickClass, $gridClass, $zoomCl
 ?>
           </div>
 <?php
-  return( ob_get_clean() );
+  return ob_get_clean();
 } # end function drawXGrid
 
 function drawYGrid( $chart, $scale, $labelClass, $tickClass, $gridClass ) {
@@ -662,7 +662,7 @@ function drawYGrid( $chart, $scale, $labelClass, $tickClass, $gridClass ) {
 ?>
   </div>
 <?php
-  return( ob_get_clean() );
+  return ob_get_clean();
 } # end function drawYGrid
 
 $focusWindow = true;