GUI -- Minor CSS edits to host view.

Change-Id: I4ad54bfa701ca7ad21a63975ddcd62a4c12442eb

@@ -47,6 +47,7 @@ table.summary-list th {
     padding: 10px;
     letter-spacing: 0.02em;
     text-align: left;
+    cursor: pointer;
 }
 table.summary-list th:first-child {
     border-radius: 8px 0 0 0;

@@ -18,6 +18,6 @@
  ONOS GUI -- Device View -- CSS file
  */
 
-#ov-device th {
-    cursor: pointer;
+#ov-device {
+    /* placeholder */
 }
\ No newline at end of file

@@ -18,6 +18,6 @@
  ONOS GUI -- Host View -- CSS file
  */
 
-#ov-host th {
-    cursor: pointer;
+#ov-host td {
+    padding: 12px 10px;
 }
\ No newline at end of file