diff --git a/layout/reftests/bugs/359903-1-ref.html b/layout/reftests/bugs/359903-1-ref.html
index 43ca80ddc237..b983cb96a906 100644
--- a/layout/reftests/bugs/359903-1-ref.html
+++ b/layout/reftests/bugs/359903-1-ref.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html>
 <html>
 <body>
-<input type="button" style="width: 1.5em" value="M">
+<input type="button" style="width: 1.5em; text-align: left" value="M">
 </body>
 </html>
diff --git a/layout/reftests/bugs/359903-1.html b/layout/reftests/bugs/359903-1.html
index 5bded9b95806..5915af343eb3 100644
--- a/layout/reftests/bugs/359903-1.html
+++ b/layout/reftests/bugs/359903-1.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html>
 <html>
 <body>
-<input type="button" style="width: 1.5em; padding-left: 0; padding-right: 0" value="M">
+<input type="button" style="width: 1.5em; padding-left: 0; padding-right: 0; text-align: left" value="M">
 </body>
 </html>
diff --git a/layout/reftests/bugs/359903-2-ref.html b/layout/reftests/bugs/359903-2-ref.html
index 94bf5a2912fd..88151c98c4cb 100644
--- a/layout/reftests/bugs/359903-2-ref.html
+++ b/layout/reftests/bugs/359903-2-ref.html
@@ -1,7 +1,7 @@
 <!DOCTYPE html>
 <html>
 <body>
-<button style="width: 100px; border: 0;
+<button style="width: 100px; border: 0; text-align: left;
                padding-left: 10px; padding-right: 10px">
    <img src="mozilla-banner.gif" width="90">
 </button>
diff --git a/layout/reftests/bugs/359903-2.html b/layout/reftests/bugs/359903-2.html
index d113e4ea5c6a..c5cecef657e2 100644
--- a/layout/reftests/bugs/359903-2.html
+++ b/layout/reftests/bugs/359903-2.html
@@ -1,7 +1,7 @@
 <!DOCTYPE html>
 <html>
 <body>
-<button style="width: 100px; border: 0;
+<button style="width: 100px; border: 0; text-align: left;
                padding-left: 0px; padding-right: 0px">
    <img src="mozilla-banner.gif" width="90">
 </button>
