doc CHANGE styling for better readability on wide displays
diff --git a/Doxyfile.in b/Doxyfile.in
index 9abd406..204efc1 100644
--- a/Doxyfile.in
+++ b/Doxyfile.in
@@ -1162,7 +1162,7 @@
 # list). For an example see the documentation.
 # This tag requires that the tag GENERATE_HTML is set to YES.
 
-HTML_EXTRA_STYLESHEET  =
+HTML_EXTRA_STYLESHEET  =  ./doc/cesnet-style.css
 
 # The HTML_EXTRA_FILES tag can be used to specify one or more extra images or
 # other source files which should be copied to the HTML output directory. Note