Index: typo3/sysext/css_styled_content/pi1/class.tx_cssstyledcontent_pi1.php
===================================================================
--- typo3/sysext/css_styled_content/pi1/class.tx_cssstyledcontent_pi1.php	(revision 7917)
+++ typo3/sysext/css_styled_content/pi1/class.tx_cssstyledcontent_pi1.php	(working copy)
@@ -636,9 +636,13 @@
 					if ($image_compression == 1)	{
 						$tempImport = $imgConf['file.']['import'];
 						$tempImport_dot = $imgConf['file.']['import.'];
+						$tempHeight = $imgConf['file.']['height'];
 						unset($imgConf['file.']);
 						$imgConf['file.']['import'] = $tempImport;
 						$imgConf['file.']['import.'] = $tempImport_dot;
+						if ($tempHeight) {
+							$imgConf['file.']['height'] = $tempHeight;
+						}
 					} elseif (isset($this->cObj->image_compression[$image_compression])) {
 						$imgConf['file.']['params'] .= ' '.$this->cObj->image_compression[$image_compression]['params'];
 						$imgConf['file.']['ext'] = $this->cObj->image_compression[$image_compression]['ext'];