diff --git a/public/css/common.css b/public/css/common.css
index ef11e8d..cede077 100644
--- a/public/css/common.css
+++ b/public/css/common.css
@@ -343,6 +343,7 @@ h1, h2, h3, h4, h5, h6, .h1, .h2, .h3, .h4, .h5, .h6 {
   color: #9b9b9b;
   display: inline-block;
   height: 25px;
+  outline: none;
   text-align: center;
   width: 30px;
 }
diff --git a/public/views/transaction/tx.html b/public/views/transaction/tx.html
index 0bb9847..4ea7219 100644
--- a/public/views/transaction/tx.html
+++ b/public/views/transaction/tx.html
@@ -1,8 +1,8 @@
   <div class="line-bot">
     <time class="pull-right">{{tx.time * 1000 | date:'medium'}}</time>
-    <a href="#" class="btn-expand" data-ng-click="itemsExpanded = !itemsExpanded"><span class="glyphicon glyphicon-plus" data-ng-class="{'glyphicon-minus': itemsExpanded}" tooltip="Show/Hide items details" tooltip-placement="right"></span></a>
+    <button class="btn-expand" data-ng-click="itemsExpanded = !itemsExpanded"><span class="glyphicon glyphicon-plus" data-ng-class="{'glyphicon-minus': itemsExpanded}" tooltip="Show/Hide items details" tooltip-placement="right"></span></button>
     <a href="/#!/tx/{{tx.txid}}">{{tx.txid}}</a>
-    <a href="#" class="btn-copy" clip-copy="tx.txid"><span class="glyphicon glyphicon-paperclip"></span></a>
+    <button class="btn-copy" clip-copy="tx.txid"><span class="glyphicon glyphicon-paperclip"></span></button>
   </div>
   <div class="row line-mid">
     <div class="col-md-5">