title: Latex paragraph spacing and page Margins
body: <p>My latex file is:</p>
  
  <pre><code>    \title{\large\textbf{Optimizarea rela\c tiei dintre structur\u a \c si comportament \^in modelarea UML}}
  
      \author{
              Sorin Oltean \\
                      \textit{Universitatea Transilvania din Bra\c sov} \\
                      \small\textit{oltean.s@gmail.com, sorin.oltean@romtelecom.ro} \\
                      \small Tel.: 0752/314288
      }
  
      \documentclass[12pt]{article}
  
      \begin{document}
      \maketitle
      \renewcommand\abstractname{\textit{\textbf{Abstract}}}
  
      \begin{abstract}
      Something..... text.........
      \end{abstract}\\\
  
      \textbf{Cuvinte cheie:}  \textit{sistem, structur\u a, comportament, UML}
  
      \section{Introducere}
  
      \paragraph{  } 
      Para11.............
      \paragraph{ } 
     Para2......
      \bibliographystyle{abbrv}
      \bibliography{main}
  
      \end{document}
  </code></pre>
  
  <p>After para1, i wanna start a new paragraph, but between the paragraphs there is a blank line, how can i start the 2nd paragraph below the 1st one, without that blank space?
  Also, how can i define the margins (top, down, left, right) of the document? There is too much space from the left, right, top and down, i wanna just 2cm space from the left and right, and 3cm from the top and down. Sorry for my bad english..
  Also how can i specify the font name and size of the document?</p>
  
  <p>Thanks!</p>