Minor style corrections

Web/css/base.less

@@ -249,8 +249,10 @@ a.button:visited
 .button {
     .baseBtn();
     .customApearance(none);
+    .transition3(box-shadow, .3s, background-color, .3s, border-color, .3s);
 
     &:hover, &:active, &:visited {
+        .shadowLiteSmall;
         .baseBtn();
     }
     &.red {

Web/css/teamlab.less

@@ -28,6 +28,11 @@
             margin-left: 20px;
             padding: 0;
         }
+        .changelog-version-block {
+            ul {
+                padding: 0 0 20px;
+            }
+        }
         .menuleft {
             border-right: 1px solid @helpBorderColor;
             float: left;