CSS Anchor Div

Hello I would like to emulate this site and have a div that is always at the bottom of the browser window:

<[url removed, login to view]>

Also I cant get my wrapper to center on the page using

margin: 0 auto;

So I need a little help with that too

CSS Ingenieurwesen Projektmanagement Softwarearchitektur Testen von Software Übersetzung

Projekt-ID: #3610719

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