[Tex/LaTex] Geometry does not seem to change the margins

geometry

I am trying to change the margins of my document with geometry. It seems not work.

this is my preamble

\documentclass{article}

\usepackage[paper=a4paper,showframe=true, left=10mm,right=10mm,top=10mm,bottom=10mm]{geometry} 
\usepackage[nochapters]{classicthesis}
\usepackage{graphicx}
\usepackage[T1]{fontenc}
\usepackage[default]{lato}
\usepackage{anyfontsize}
\usepackage{hyperref} % Required for adding links   and customizing them
\hypersetup{colorlinks, breaklinks, urlcolor=Gray, linkcolor=Gray} % Set link colors
\usepackage{color}
\definecolor{text}{HTML}{2b2b2b} % The primary document color for content text
\definecolor{headings}{HTML}{A901DB}
\definecolor{subheadings}{HTML}{333333} % The color of subsections and places worked/studied
\definecolor{name}{HTML}{6A6A6A} % The color of the large sections
\color{text}

\newlength{\datebox}\settowidth{\datebox}{1234567891011} % Set the width of the date box in each block

\newcommand{\NewEntry}[3]{\noindent\hangindent=0em\hangafter=0 \parbox{\datebox}{\small \textit{#1}}\hspace{0.2em} #2 #3 % Define a command for each new block - change spacing and font sizes here: #1 is the left margin, #2 is the italic date field and #3 is the position/employer/location field
\vspace{0.5em}} % Add some white space after each new entry

\newcommand{\Contacts}[3]{\noindent\hangindent=0em\hangafter=0 \parbox{\datebox}{\small \textit{#1}}\hspace{-0.5em} #2 #3 % Define a command for each new block - change spacing and font sizes here: #1 is the left margin, #2 is the italic date field and #3 is the position/employer/location field
\vspace{0.5em}} % Add some white space after each new entry

\newcommand{\Description}[1]{\hangindent=0em\hangafter=0\noindent\raggedright\footnotesize{#1}\par\normalsize\vspace{1em}} % Define a command for descriptions of each entry - change spacing and font sizes here

\newcommand{\Jobs}[1]{\hangindent=0em\hangafter=0\noindent\raggedright\footnotesize{#1}\par\normalsize\vspace{.5em}} 


\newcommand{\Pub}[1]{\hangindent=0em\hangafter=0\noindent\raggedright\footnotesize{#1}\par\normalsize\vspace{1em}} % Define a command for descriptions of each entry - change spacing and font sizes here


\newcommand{\Titlename}[1]{\centering{\textcolor{subheadings}{\fontseries{l}\fontsize{40}{60}\selectfont #1}}}

\newcommand{\Goal}[1]{\flushright{\textcolor{subheadings}{\fontsize{10}{15}\selectfont #1}}}

Thanks for helping

Best Answer

One of the main goals of the classicthesis template is to provide a typographically pleasing document. No matter how buggy the implementation is.
The manual begs the user not to change the margins.

Nvertheless, if you want to change the margins to specified values, the recommended way with KOMA-script is to use package geometry indeed. But after loading classicthesis.

As cfr notes in the comments, neither \footnotesize nor centering do take any argument.

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