diff --git a/core/src/main/scala/org/apache/spark/deploy/worker/ui/WorkerWebUI.scala b/core/src/main/scala/org/apache/spark/deploy/worker/ui/WorkerWebUI.scala
index 40d6bdb3fdbe908281b8ccd2476670ba1bafcf80..19aa800a958b3eb0612042d4917ae71f8947af63 100644
--- a/core/src/main/scala/org/apache/spark/deploy/worker/ui/WorkerWebUI.scala
+++ b/core/src/main/scala/org/apache/spark/deploy/worker/ui/WorkerWebUI.scala
@@ -140,12 +140,12 @@ class WorkerWebUI(val worker: Worker, val workDir: File, requestedPort: Option[I
<body>
{linkToMaster}
<div>
- <div style="float:left;width:40%">{backButton}</div>
+ <div style="float:left; margin-right:10px">{backButton}</div>
<div style="float:left;">{range}</div>
- <div style="float:right;">{nextButton}</div>
+ <div style="float:right; margin-left:10px">{nextButton}</div>
</div>
<br />
- <div style="height:500px;overflow:auto;padding:5px;">
+ <div style="height:500px; overflow:auto; padding:5px;">
<pre>{logText}</pre>
</div>
</body>