diff --git a/kfet/static/kfet/css/kpsul.css b/kfet/static/kfet/css/kpsul.css
index f9c6a596..e7950914 100644
--- a/kfet/static/kfet/css/kpsul.css
+++ b/kfet/static/kfet/css/kpsul.css
@@ -392,13 +392,13 @@ input[type=number]::-webkit-outer-spin-button {
 /* History */
 
 #previous_op .trigramme {
-	width:100%;
+    width:100%;
     background-color:rgba(200,16,46,0.85);
     color:#FFF;
     font-weight:bold;
     padding:3px;
-	margin-left: -3px;
-	margin-bottom: 3px;
+    margin-left: -3px;
+    margin-bottom: 3px;
 }
 
 .kpsul_middle_right_col {