diff --git a/xelatex/lectures/preamble.tex b/xelatex/lectures/preamble.tex
index 2bddac9..ea0adff 100644
--- a/xelatex/lectures/preamble.tex
+++ b/xelatex/lectures/preamble.tex
@@ -48,8 +48,8 @@
 \DeclareGraphicsExtensions{.jpg,.jpeg,.pdf,.png,.mps}
 
 % slidemargins {seminar,powersem}
-\renewcommand{\slidetopmargin}{15mm}
-\renewcommand{\slidebottommargin}{28mm} % 'correct' the bottom margin
+\renewcommand{\slidetopmargin}{10mm}
+\renewcommand{\slidebottommargin}{20mm} % 'correct' the bottom margin
 \renewcommand{\slideleftmargin}{15mm}
 \renewcommand{\sliderightmargin}{15mm}
 
@@ -61,7 +61,7 @@
 % first param is font size, second is baselineskip
 \newcommand\codesize{\fontsize{8}{0.8em}\selectfont}
 \newcommand{\codefont}{\ttfamily}
-\newcommand\smallcodesize{\fontsize{7}{0.7em}\selectfont}
+\newcommand\smallcodesize{\fontsize{7}{0.95em}\selectfont}
 
 % define the colors for code highlighting (based on NetBeans colors)
 \definecolor{KeywordColor}{rgb}{0.0,0,0.9}