Fix blind header fonts

Change-Id: I2b0983b279d91b9ac0ad8c3988330e72fa218fdc
diff --git a/Changes b/Changes
index edb7691..718613a 100755
--- a/Changes
+++ b/Changes
@@ -1,4 +1,4 @@
-0.43 2021-09-24
+0.43 2021-09-30
         - New menu class that has an entry at the very end,
           similar to the input text prefix,
           that is always available. (lerepp)
@@ -32,6 +32,7 @@
         - Add support for pagination information to retrieve by plugins.
         - Buttongroup menus can be opened at different positions.
         - Fix buttongroup anchoring if anchor doesn't exist.
+        - Fix blind header titles.
 
 0.42 2021-06-18
         - Added GitHub based CI for perl.
diff --git a/dev/scss/base/mixins.scss b/dev/scss/base/mixins.scss
index 765ea76..599c19a 100644
--- a/dev/scss/base/mixins.scss
+++ b/dev/scss/base/mixins.scss
@@ -7,6 +7,7 @@
 @mixin blind {
   position:    absolute;
   margin-left: -3000px;
+  font-size:   1px;
 }
 
 
@@ -64,4 +65,4 @@
 @mixin matchinfo-head {
   border-top: $border-size solid $darker-orange; // #ff8000;
   width:      $left-width / 2;
-}
\ No newline at end of file
+}