code cleanind, delete deprecated files

css/btn.css

@@ -1,8 +1,7 @@
 ul.btn-control.main {
     margin: 0;
-    padding: 0;
-    list-style: none;
-    padding-right: 10px;
+    list-style: none none;
+    padding: 0 10px 0 0;
 }
 
 ul.btn-control.main li {
@@ -11,16 +10,14 @@ ul.btn-control.main li {
 
 .btn {
     display: inline-block;
-    font-family: MS Sans Serif;
+    font-family: MS Sans Serif, sans-serif;
     font-size: 10px;
     text-align: center;
     -webkit-touch-callout: none;
     -webkit-user-select: none;
-    -khtml-user-select: none;
     -moz-user-select: none;
     -ms-user-select: none;
     user-select: none;
-    display: inline-block;
     line-height: 10px \0/;
 }
 
@@ -38,8 +35,7 @@ input.btn {
     margin: 0;
     line-height: 10px;
     color: black;
-    padding: 0;
-    padding-top: 1px;
+    padding: 1px 0 0;
 }
 
 .button-big {
@@ -72,7 +68,7 @@ input.btn {
     font-weight: bold;
     font-size: 12pt;
     color: #8F0000;
-    font-family: Arial;
+    font-family: Arial, serif;
     text-align: center;
 }