10px bottom margin for selectize input

Author: yihui

inst/www/shared/shiny.css

@@ -85,7 +85,7 @@ span.jslider {
 
 .crosshair {
   cursor: crosshair;
-} 
+}
 
 .well input[type="text"],
 .well input[type="number"],
@@ -97,3 +97,8 @@ span.jslider {
 .qt pre, .qt code {
   font-family: monospace !important;
 }
+
+/* consistency with bootstrap.css for selectize.js */
+.selectize-control {
+  margin-bottom: 10px;
+}