There is the template I have to use for a papaer and it looks like this:
\documentclass[a4paper,11pt]{article}
\usepackage{graphicx} %%% for including graphics
\usepackage{url} %%% for including URLs
\usepackage{times}
\usepackage{natbib}
\usepackage[margin=25mm]{geometry}
\title{Example Paper for IWCS}
\date{}
\author{Example Author}
\begin{document}
\maketitle
\thispagestyle{empty}
\pagestyle{empty}
\section{Introduction}
\end{document}
But I have to insert an abstract and when I do it using abstract{} the margins of the page changes.
Any ideas how to have an abstract and maintain 2.5cm margins at the same time?


The minimal working example is:
\documentclass[a4paper,11pt]{article}
\usepackage{graphicx} %%% for including graphics
\usepackage{url} %%% for including URLs
\usepackage{times}
\usepackage{natbib}
\usepackage[margin=25mm]{geometry}
\title{This is the Title of the Paper}
\date{}
\author{Author Author}
\begin{document}
\maketitle
\thispagestyle{empty}
\pagestyle{empty}
\abstract{The term "domestic dog" is generally used for both of the domesticated and feral varieties. The English word dog comes from Middle English dogge, from Old English docga, a "powerful dog breed".[6] The term may possibly derive from Proto-Germanic *dukkōn, represented in Old English finger-docce ("finger-muscle").[7] The word also shows the familiar petname diminutive -ga also seen in frogga "frog", picga "pig", stagga "stag", wicga "beetle, worm", among others.[8] The term dog may ultimately derive from the earliest layer of Proto-Indo-European vocabulary, reflecting the role of the dog as the earliest domesticated animal.
}
\section{Introduction}
The term "domestic dog" is generally used for both of the domesticated and feral varieties. The English word dog comes from Middle English dogge, from Old English docga, a "powerful dog breed".[6] The term may possibly derive from Proto-Germanic *dukkōn, represented in Old English finger-docce ("finger-muscle").[7] The word also shows the familiar petname diminutive -ga also seen in frogga "frog", picga "pig", stagga "stag", wicga "beetle, worm", among others.[8] The term dog may ultimately derive from the earliest layer of Proto-Indo-European vocabulary, reflecting the role of the dog as the earliest domesticated animal.
\end{document}