Fix parse errors in UA stylesheet

Review URL: https://codereview.chromium.org/955203002

git-svn-id: svn://svn.chromium.org/blink/trunk@190878 bbb929c8-8fbe-4397-9dbb-9b2b20218538
diff --git a/Source/core/css/html.css b/Source/core/css/html.css
index 5aa24bb..c50156e 100644
--- a/Source/core/css/html.css
+++ b/Source/core/css/html.css
@@ -450,7 +450,7 @@
     -webkit-user-modify: read-only !important;
     -webkit-margin-start: 2px;
     opacity: 0;
-    pionter-events: none;
+    pointer-events: none;
 }
 
 input:enabled:read-write:-webkit-any(:focus,:hover)::-webkit-clear-button {
@@ -612,7 +612,6 @@
     box-sizing: border-box;
     -webkit-user-modify: read-only !important;
     display: flex;
-    -webkit-align-contents: center;
 }
 
 input[type="range" i]::-webkit-slider-runnable-track {