圆角矩形内的文字

Question

我的代码：

\documentclass{article}
\usepackage{tikzpagenodes}

\begin{document}

\begin{tikzpicture}
    \node (example-textwidth-3) [draw, align=center, text width=16cm, rounded corners=4]{\vfill \textbf{\LARGE Subject Title \vfill}\\ \vspace{0.5cm} \Large This is a long title. This is a long title. This is a long title. This is a long title. This is a long title. This is a long title. \linebreak};
\end{tikzpicture}

\end{document}

我想纠正错误，并将其居中显示。

Answer 1

像这样？

（红线表示页面布局）

您的框比文本块的宽度宽得多，因此它突出了右边框。在上图中，框的宽度限制为文本的宽度：

\documentclass{article}
%---------------- show page layout. don't use in a real document!
\usepackage{showframe}
\renewcommand\ShowFrameLinethickness{0.15pt}
\renewcommand*\ShowFrameColor{\color{red}}
%---------------------------------------------------------------%
\usepackage{tikz}

\begin{document}
\noindent%
\begin{tikzpicture}
    \node (example-textwidth-3) [draw, rounded corners,
                                 text width=\linewidth-24pt,    % <---
                                 align=flush center, 
                                 inner sep=12 pt]%
    {\textbf{\LARGE Subject Title}\par
     \vspace{5mm}
     \Large 
     This is a long title. This is a long title. This is a long title. This is a long title. This is a long title. This is a long title};
\end{tikzpicture}
\end{document}