diff --git a/views/bootstrap/class.DefaultKeywords.php b/views/bootstrap/class.DefaultKeywords.php
index e91a025ee..6b42ff0c0 100644
--- a/views/bootstrap/class.DefaultKeywords.php
+++ b/views/bootstrap/class.DefaultKeywords.php
@@ -128,7 +128,7 @@ $(document).ready( function() {
 						<?php echo createHiddenFieldWithKey('removecategory'); ?>
 						<input type="hidden" name="categoryid" value="<?php echo $selcategoryid?>">
 						<input type="hidden" name="action" value="removecategory">
-						<button class="btn" type="submit"><i class="fa fa-remove"></i> <?php echo getMLText("rm_default_keyword_category")?></button>
+						<button class="btn btn-danger" type="submit"><i class="fa fa-remove"></i> <?php echo getMLText("rm_default_keyword_category")?></button>
 						</form>
 <?php
 		}
@@ -175,7 +175,7 @@ $(document).ready( function() {
 							<input type="hidden" name="action" value="editcategory">
 							<input type="hidden" name="categoryid" value="<?php echo $category->getID()?>">
 							<input name="name" class="name" type="text" value="<?php echo htmlspecialchars($category->getName()) ?>">
-							<button type="submit" class="btn"><i class="fa fa-save"></i> <?php printMLText("save");?></button>
+							<button type="submit" class="btn btn-primary"><i class="fa fa-save"></i> <?php printMLText("save");?></button>
 						</form>
 					</div>
 				</div>
@@ -196,7 +196,7 @@ $(document).ready( function() {
 									<input type="Hidden" name="keywordsid" value="<?php echo $list["id"]?>">
 									<input type="Hidden" name="action" value="editkeywords">
 									<input name="keywords" class="keywords" type="text" value="<?php echo htmlspecialchars($list["keywords"]) ?>">
-									<button class="btn" title="<?php echo getMLText("save")?>"><i class="fa fa-save"></i> <?php echo getMLText("save")?></button>
+									<button class="btn btn-primary" title="<?php echo getMLText("save")?>"><i class="fa fa-save"></i> <?php echo getMLText("save")?></button>
 									<!--	 <input name="action" value="removekeywords" type="Image" src="images/del.gif" title="<?php echo getMLText("delete")?>" border="0"> &nbsp; -->
 									</form>
 									<form style="display: inline-block;" method="post" action="../op/op.DefaultKeywords.php" >
@@ -204,7 +204,7 @@ $(document).ready( function() {
 									<input type="hidden" name="categoryid" value="<?php echo $category->getID()?>">
 									<input type="hidden" name="keywordsid" value="<?php echo $list["id"]?>">
 									<input type="hidden" name="action" value="removekeywords">
-									<button class="btn" title="<?php echo getMLText("delete")?>"><i class="fa fa-remove"></i> <?php echo getMLText("delete")?></button>
+									<button class="btn btn-danger" title="<?php echo getMLText("delete")?>"><i class="fa fa-remove"></i> <?php echo getMLText("delete")?></button>
 									</form>
 									<br>
 						<?php }  ?>