From f79c1cfc997c1a7ddee480ca3d46f5341b69d3b7 Mon Sep 17 00:00:00 2001
From: Josh Rosen <joshrosen@databricks.com>
Date: Tue, 9 Dec 2014 23:47:05 -0800
Subject: [PATCH] [Minor] Use <sup> tag for help icon in web UI page header

This small commit makes the `(?)` web UI help link into a superscript, which should address feedback that the current design makes it look like an error occurred or like information is missing.

Before:

![image](https://cloud.githubusercontent.com/assets/50748/5370611/a3ed0034-7fd9-11e4-870f-05bd9faad5b9.png)

After:

![image](https://cloud.githubusercontent.com/assets/50748/5370602/6c5ca8d6-7fd9-11e4-8d1a-568d71290aa7.png)

Author: Josh Rosen <joshrosen@databricks.com>

Closes #3659 from JoshRosen/webui-help-sup and squashes the following commits:

bd72899 [Josh Rosen] Use <sup> tag for help icon in web UI page header.
---
 core/src/main/scala/org/apache/spark/ui/UIUtils.scala | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/core/src/main/scala/org/apache/spark/ui/UIUtils.scala b/core/src/main/scala/org/apache/spark/ui/UIUtils.scala
index 315327c3c6..d970fa30c1 100644
--- a/core/src/main/scala/org/apache/spark/ui/UIUtils.scala
+++ b/core/src/main/scala/org/apache/spark/ui/UIUtils.scala
@@ -181,7 +181,9 @@ private[spark] object UIUtils extends Logging {
       </li>
     }
     val helpButton: Seq[Node] = helpText.map { helpText =>
-      <a data-toggle="tooltip" data-placement="bottom" title={helpText}>(?)</a>
+      <sup>
+        (<a data-toggle="tooltip" data-placement="bottom" title={helpText}>?</a>)
+      </sup>
     }.getOrElse(Seq.empty)
 
     <html>
-- 
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