diff --git a/src/views/preview/comment/comment.scss b/src/views/preview/comment/comment.scss
index 7c9027d01..285d673e7 100644
--- a/src/views/preview/comment/comment.scss
+++ b/src/views/preview/comment/comment.scss
@@ -1,5 +1,7 @@
 @import "../../../colors";
 
+$cross-browser-transparent: hsla(0, 0, 100, 0);
+
 .compose-comment {
     width: 100%;
 
@@ -172,7 +174,7 @@
                 position: absolute;
                 bottom: 0;
                 background: linear-gradient(
-                    transparent,
+                    $cross-browser-transparent,
                     $ui-light-primary
                 );
                 width: 100%;
@@ -188,7 +190,7 @@
     margin-bottom: 24px;
     width: 100%;
     overflow: hidden;
-    text-align: center; 
+    text-align: center;
 
     &:before,
     &:after {
@@ -211,4 +213,3 @@
         margin-right: -50%;
     }
 }
-