Fancy boxes for theorem, lemma, and proof with mdframed – texblog
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LaTeX/Boxes - Wikibooks, open books for an open world
fbox fails to inherit color from css · Issue #1772 · KaTeX/KaTeX · GitHub
line breaking - how to get a newline in \fbox? - TeX - LaTeX Stack Exchange
LaTeX/Boxes - Wikibooks, open books for an open world
Latex Colors - Javatpoint
All you need to know about colors in LaTeX - LaTeX-Tutorial.com
LaTeX: color leaks for code-line inside a warning-type admonition since page-breaks can happen in the middle of wrapped highlighted code-lines · Issue #10650 · sphinx-doc/sphinx · GitHub
How to change the default border color of fbox? - TeX - LaTeX Stack Exchange
boxes - How to change options in the fcolorbox environment - TeX - LaTeX Stack Exchange
How to use Boxes in LaTeX (Latex Advanced Tutorial-07) - YouTube
Latex for beginner
LaTeX/Boxes - Wikibooks, open books for an open world
fbox) with Double (or triple) border lines ? -- more Decorative border lines ? : r/LaTeX
天地有情 [LaTeX] fbox --- \fbox の拡張バージョン
color - No border on first page when using \fcolorbox and \fancypage - TeX - LaTeX Stack Exchange
The $\mbox{\lfbox[rounded]{longfbox}}${math-needpdf=true} package
How to frame a text using the colour mask?
formatting - Wrapping text in a fcolorbox? - TeX - LaTeX Stack Exchange