diff --git a/tex/page/title.tex b/tex/page/title.tex
index 51d43cd..04aadce 100644
--- a/tex/page/title.tex
+++ b/tex/page/title.tex
@@ -28,7 +28,7 @@
 \end{minipage}
 
 % separator.
-\vspace{4mm}
 \hspace{-8mm}{%
-  \color{gray}{\rule{\linewidth}{1pt}}
+  \color[RGB]{229,229,229}{\rule{\linewidth}{1pt}}
 }
+\vspace{2mm}
diff --git a/tex/style.tex b/tex/style.tex
index 483d67f..9b61256 100644
--- a/tex/style.tex
+++ b/tex/style.tex
@@ -3,7 +3,7 @@
 \definecolor{white}{RGB}{255,255,255} % default white.
 \definecolor{link} {RGB}{46,116,181}  % web link.
 \definecolor{main} {RGB}{244,67,54}   % main.
-\definecolor{gray} {RGB}{209,213,219} % gray.
+\definecolor{gray} {RGB}{127,127,127} % gray.
 \definecolor{ref}  {RGB}{53,82,105}   % reference color.
 
 \definecolor{code_background}{RGB}{40,42,54}    % code background.
@@ -14,16 +14,17 @@
 \definecolor{code_keyword}   {RGB}{255,184,108} % code keywords like "val", "fun" etc.
 \definecolor{code_comment}   {RGB}{98,114,164}  % code comment colors like // todo.
 
-% code block box.
+% code block.
 \newtcolorbox{scodebox}[1][]{
   colback   = code_background,
   colframe  = code_background,
   fontupper = \ttfamily,
   nobeforeafter
 }
+\newenvironment{scode}{\begin{scodebox}\catcode33=12\obeylines}{\end{scodebox}}
 
 % styles.
-\newcommand{\sreset}    [1]{\fontsize{14}{14}\selectfont\rm\color{black}#1}         % reset font style.
+\newcommand{\sreset}    [1]{\fontsize{12}{10}\selectfont\rm\color{black}#1}         % reset font style.
 \newcommand{\spar}      [0]{\par}                                                   % default paragraph break.
 \newcommand{\stext}     [1]{\sreset{#1}}                                            % default text.
 \newcommand{\sitallic}  [1]{\textit{#1}}                                            % itallic text. 
@@ -31,11 +32,11 @@
 \newcommand{\ssemibold} [1]{\fontseries{sb}{\selectfont{#1}}}                       % semi-bold text.
 \newcommand{\sunderline}[1]{\underline{#1}}                                         % underline text.
 \newcommand{\slink}     [2]{\href{#1}{\textcolor{link}{\sunderline{#2}}}}           % link webpage.
-\newcommand{\sname}     [1]{\fontsize{21}{21}{\selectfont{\sbold{#1}}}}             % name style.
+\newcommand{\sname}     [1]{\fontsize{21}{21}{\selectfont{\ssemibold{#1}}}}             % name style.
 \newcommand{\scolor}    [2]{\textcolor{#1}{#2}}                                     % text color alias.
 \newcommand{\sicon}     [1]{\raisebox{-1mm}{\includegraphics[height=5mm]{#1}}}      % icons.
-\newcommand{\stitle}    [1]{\hypertarget{#1}{}\fontsize{11}{11}%
-  {\selectfont{\textcolor{main}{\ssemibold{#1}}}}}                                  % section title.
+\newcommand{\stitle}    [1]{\hypertarget{#1}{}\hspace{-2mm}\fontsize{11}{10}%
+  {\selectfont{\textcolor{main}{\ssemibold{#1}}}}\vspace{2mm}}                                  % section title.
 \newcommand{\shref}     [1]{\hyperlink{#1}{\textcolor{link}{\sunderline{#1}}}}      % reference section.
 \newcommand{\sref}      [1]{\textcolor{ref}{#1}}                                    % reference text.
 \newcommand{\slist}     [1]{\textcolor{ref}{#1}}                                    % list numbers.
@@ -46,7 +47,7 @@
 \newcommand{\scproperty}[1]{\textcolor{code_property}{#1}}                          % color code string.
 \newcommand{\sckeyword} [1]{\textcolor{code_keyword}{#1}}                           % color code string.
 \newcommand{\sccomment} [1]{\textcolor{code_comment}{#1}}                           % color code string.
-\newenvironment{scode}{\begin{scodebox}\catcode32=12\obeylines}{\end{scodebox}}     % code block.
+\newcommand{\sdaterange}[1]{\hfill\fontsize{10}{10}\selectfont\textcolor{gray}{#1}}
 
 % settings.
 \linespread{1.5}  % height between non-breaking lines.