Ar123sj

for a staff account.

pdflatex sample
bibtex bu1
bibtex bu2
pdflatex sample
pdflatex sample

\documentclass[12pt,onecolumn]{article}

\usepackage{blindtext}
\usepackage{float}
\usepackage{multicol}
\usepackage{graphicx}

\title{Something}
\author{Someone}

\begin{document}
\maketitle

\begin{multicols}{2}
Lorem ipsum dolor sit amet, consectetuer adipiscing elit.
\begin{figure}[H]
  \includegraphics[width=\linewidth]{example-image-a}
  \caption{Some image}
\end{figure}
Curabitur dictum gravida mauris.

\blindtext
\end{multicols}

\end{document}

\documentclass{article}
\usepackage{fancyhdr}
\usepackage{lipsum}

\pagestyle{fancy}
\fancyhf{}
\renewcommand{\headrulewidth}{0pt}
\fancyhead[C]{
  \begin{tabular}{@{}p{\textwidth}@{}}
    Info~1\hfill \\
    \hline
    Info~2\hfill 
  \end{tabular}
}
\setlength{\headheight}{26.4pt}

\begin{document}
\lipsum
\end{document}