I am trying to create a set of smartphone-readable lecture notes.
I want the page to have almost no margins and the text to be relatively big. I was able to do that and I'm happy with the layout. However, Text overflows to the right and in the bottom. So words extend outside of the page and there is content missing on the page. As you can see in the picture, after section 4 "Vektorräume" there should be much more content but isn't. Also notice the first section name overflowing to the right.
\documentclass[20pt]{extarticle}
\usepackage[utf8]{inputenc}
\usepackage{amsmath}
\usepackage[a5paper,bindingoffset=0in, left=0.3in, right=0.3in, top=0.3in, bottom=0.3in, footskip=.25in]{geometry}
\pagenumbering{gobble}
\begin{document}
\section{ThisIsAnOverflowingRootNode}
\section{Vektorrechnung}
\subsection{Längen}
\subsection{Skalarprodukte}
\section{Lineare Gleichungssysteme}
\subsection{Elimination}
\subsection{Matrixoperationen}
\subsection{Inverse Matrizen}
\subsection{Faktorisierung}
\subsection{Transponierte}
\subsection{Permutationen}
\section{Vektorräume}
\subsection{Kern}
\subsection{Rang}
\subsection{Reduzierte Treppenform}
\subsection{Unabhängigkeit}
\subsection{Basis}
\subsection{Dimension}
\section{Orthogonalität}
\subsection{Projektionen}
\subsection{Kleinste Quadrate}
\subsection{Orthogonale Basen und Gram-Schmidt}
\section{Determinanten}
\subsection{Eigenschaften}
\subsection{Permutationen}
\subsection{Kofaktoren}
\subsection{Cramer'sche Regel}
\subsection{Inverse}
\subsection{Volumen}
\section{Eigenwerte und -vektoren}
\section{Anwendungen}
\section{Numerische lineare Algebra}
\section{Komplexe Vektoren und Matrizen}
\end{document}
