Section 3 Text formatting

1 Font size
\tiny Hello
   Hello 
\scriptsize Hello
   Hello 
\footnotesize Hello
   Hello 
\small Hello
   Hello 
\large Hello
   Hello 
\Large Hello
   Hello 
\LARGE Hello
   Hello 
\huge Hello
   Hello 
\Huge Hello
   Hello
2 Font family
\textrm{Hello}
   Hello 
\textsf{Hello}
   Hello 
\texttt{Hello}
   Hello
3 Font style
\textmd{Hello}
   Hello 
\textbf{Hello}
   Hello 
\textup{Hello}
   Hello 
\textit{Hello}
   Hello 
\textsl{Hello}
   Hello 
\textsc{Hello}
   Hello