--- typo3/sysext/t3skin/stylesheets/sprites/t3skin.css
+++ typo3/sysext/t3skin/stylesheets/sprites/t3skin.css
@@ -302,10 +302,12 @@
 }
 .t3-icon-system-extension-install {
 	background-position: -252px -54px !important;
+	position: absolute;
 
 }
 .t3-icon-system-extension-uninstall {
 	background-position: -270px -54px !important;
+	position: absolute;
 
 }
 .t3-icon-system-extension-update {

--- typo3/sysext/em/res/css/t3_em.css
+++ typo3/sysext/em/res/css/t3_em.css
@@ -42,6 +42,7 @@
 }

 .t3-icon-em-extension-required {
+	position: absolute;
 	cursor: default;
 }