diff --git a/src/main/twirl/gitbucket/core/dashboard/issuesnavi.scala.html b/src/main/twirl/gitbucket/core/dashboard/issuesnavi.scala.html
index 5770f8279..021d5d895 100644
--- a/src/main/twirl/gitbucket/core/dashboard/issuesnavi.scala.html
+++ b/src/main/twirl/gitbucket/core/dashboard/issuesnavi.scala.html
@@ -15,7 +15,7 @@
   </li>
   <li class="pull-right">
     <form method="GET" id="search-filter-form" action="@path/dashboard/@active" style="margin-bottom: 0px;">
-      <input type="text" id="search-filter-box" class="input-xlarge" name="q" style="height: 24px; width: 400px;"
+      <input type="text" id="search-filter-box" class="form-control input-lg" name="q" style="width: 400px;"
              value="is:@{if(active == "issues") "issue" else "pr"} @condition.toFilterString"/>
     </form>
   </li>
diff --git a/src/main/twirl/gitbucket/core/helper/dropdown.scala.html b/src/main/twirl/gitbucket/core/helper/dropdown.scala.html
index ba39fb8bd..7476304e5 100644
--- a/src/main/twirl/gitbucket/core/helper/dropdown.scala.html
+++ b/src/main/twirl/gitbucket/core/helper/dropdown.scala.html
@@ -7,7 +7,7 @@
 <div class="btn-group" @if(style.nonEmpty){style="@style"}>
   <button
       @if(flat){style="border: none; background-color: #eee;"}
-      class="dropdown-toggle @if(!flat){btn} else {flat} @if(mini){btn-xs} else {btn-sm}" data-toggle="dropdown">
+      class="dropdown-toggle @if(!flat){btn btn-default} else {flat} @if(mini){btn-xs} else {btn-sm}" data-toggle="dropdown">
     @if(value.isEmpty){
       <i class="octicon octicon-gear"></i>
     } else {