网页 LaTeX 代码块

\color{red}{\texttt{这是红色}} \\
\color{blue}{\texttt{这是蓝色}} \\
\color{green}{\texttt{这是绿色}} \\
\color{black}{\texttt{这是黑色}} \\
\color{white}{\texttt{这是白色}} \\
\color{cyan}{\texttt{这是青色}} \\
\color{magenta}{\texttt{这是洋红色}} \\
\color{yellow}{\texttt{这是黄色}} 

\color{颜色}

\texttt（正常字体）
\textbf（加粗）
\textit (斜体)

\Huge \texttt{这是 \Huge} \\
\huge \texttt{这是 \huge} \\
\LARGE \texttt{这是 \LARGE} \\
\Large \texttt{这是 \Large} \\
\large \texttt{这是 \large} \\
\normalsize \texttt{这是 \normalsize 正常尺寸} \\
\small \texttt{这是 \small} \\ 
\scriptsize \texttt{这是 \scriptsize} \\
\tiny \texttt{这是 \tiny}

\LARGE \color{red}{\texttt{使用时}}\large \textbf{按需要} \color{magenta}{组合}\normalsize \underline{上述宏}即可