diff --git a/core/tests/Drupal/Tests/Core/Asset/css_test_files/comment_hacks.css b/core/tests/Drupal/Tests/Core/Asset/css_test_files/comment_hacks.css
index 4f16475..a823346 100644
--- a/core/tests/Drupal/Tests/Core/Asset/css_test_files/comment_hacks.css
+++ b/core/tests/Drupal/Tests/Core/Asset/css_test_files/comment_hacks.css
@@ -15,6 +15,10 @@ img[style*="float: right"] {
   padding-left:5px;
 }
 
+img[style*='float: left'] {
+    padding-right:5px;
+}
+
 /* A multiline IE-mac hack (v.2) taken from Zen theme*/
 /* Hides from IE-mac \*/
 html .clear-block {
diff --git a/core/tests/Drupal/Tests/Core/Asset/css_test_files/comment_hacks.css.optimized.css b/core/tests/Drupal/Tests/Core/Asset/css_test_files/comment_hacks.css.optimized.css
index 6582308..1c8afbf 100644
--- a/core/tests/Drupal/Tests/Core/Asset/css_test_files/comment_hacks.css.optimized.css
+++ b/core/tests/Drupal/Tests/Core/Asset/css_test_files/comment_hacks.css.optimized.css
@@ -1 +1 @@
-.test1{display:block;}img[style*="float: right"]{padding-left:5px;}html .clear-block{height:1%;}.clear-block{display:block;font:italic bold 12px/30px Georgia,serif;}.test2{display:block;}.bkslshv1{background-color:#C00;}.test3{display:block;}.test4{display:block;}.comment-in-double-quotes:before{content:"/* ";}.this_rule_must_stay{color:#F00;background-color:#FFF;}.comment-in-double-quotes:after{content:" */";}.comment-in-single-quotes:before{content:'/*';}.this_rule_must_stay{color:#F00;background-color:#FFF;}.comment-in-single-quotes:after{content:'*/';}.comment-in-mixed-quotes:before{content:'"/*"';}.this_rule_must_stay{color:#F00;background-color:#FFF;}.comment-in-mixed-quotes:after{content:"'*/'";}.comment-in-quotes-with-escaped:before{content:'/* \" \' */';}.this_rule_must_stay{color:#F00;background-color:#FFF;}.comment-in-quotes-with-escaped:after{content:"*/ \" \ '";}
+.test1{display:block;}img[style*="float: right"]{padding-left:5px;}img[style*='float: left']{padding-right:5px;}html .clear-block{height:1%;}.clear-block{display:block;font:italic bold 12px/30px Georgia,serif;}.test2{display:block;}.bkslshv1{background-color:#c00;}.test3{display:block;}.test4{display:block;}.comment-in-double-quotes:before{content:"/* ";}.this_rule_must_stay{color:#f00;background-color:#fff;}.comment-in-double-quotes:after{content:" */";}.comment-in-single-quotes:before{content:'/*';}.this_rule_must_stay{color:#f00;background-color:#fff;}.comment-in-single-quotes:after{content:'*/';}.comment-in-mixed-quotes:before{content:'"/*"';}.this_rule_must_stay{color:#f00;background-color:#fff;}.comment-in-mixed-quotes:after{content:"'*/'";}.comment-in-quotes-with-escaped:before{content:'/* \" \' */';}.this_rule_must_stay{color:#f00;background-color:#fff;}.comment-in-quotes-with-escaped:after{content:"*/ \" \ '";}