diff --git a/web/third/bootstrap/css/bootstrap-btn.css b/web/third/bootstrap/css/bootstrap-btn.css
index 79a7e22b3f..b7212e911d 100644
--- a/web/third/bootstrap/css/bootstrap-btn.css
+++ b/web/third/bootstrap/css/bootstrap-btn.css
@@ -299,27 +299,6 @@ THE SOFTWARE.
   color: #999;
   text-decoration: none;
 }
-.btn-large,
-.btn-group-large > .btn {
-  padding: 10px 16px;
-  font-size: 18px;
-  line-height: 1.33;
-  border-radius: 0px;
-}
-.btn-small,
-.btn-group-small > .btn {
-  padding: 5px 10px;
-  font-size: 12px;
-  line-height: 1.5;
-  border-radius: 0px;
-}
-.btn-mini,
-.btn-group-mini > .btn {
-  padding: 1px 5px;
-  font-size: 12px;
-  line-height: 1.5;
-  border-radius: 0px;
-}
 .btn-block {
   display: block;
   width: 100%;