Disable live site with apache rewrite rules

Any times I have to work on a live site like http://www.capella-fidicinia.de or http://www.cryo-tekk.de. All these sites are Joomla instances and Joomla doe’s not allow to disbale the site complete. You can only put the site „offline“ with a setting in the administration module. After putting such site into the offline mode, nobody can anymore change the content and the user got a inforation bar on the site.

But often I will change complete the layout (testing new skin, working on the existing skin and so on). But the user should not see my changes because it is very ugly if you browse to a side and with every click the layout changes.

My Joomla instances running behind a apache2 webserver as a virtual host. To put the site complete offline and inform the user about maintainance you can put the follow into you virtual host configuration:

RewriteEngine On
RewriteCond %{REMOTE_ADDR} !^194.136.37.140$
RewriteRule .* /var/www/domains/www.cryo-tekk.de/htdocs/maintainance.html [L]

With such entry only the IP adress 194.136.37.140 can see the site. All other IP adresses, which try to access the site are foreward to the maintainance.html site.

For more information about rewrite rules you can have a look here.

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place a div element always bottom

A while ago I have searched for a solution to place a <div> element inside another <div> element always bottom. There are many solutions to put the div bottom from the whole html site but rar solutions to put it in the container div bottom.

Now here comes my solution …

I have one div container (calling it simple container) with a height of 100% (this container itself is placed for example in another parent container which has a height of 400px). And I have my div which should placed bottom of the container:

<div id="container" style="height:100%; position:relative;">
  <div id="bottom_div" style="height:10%; position:absolute; bottom:0px;"/>
</div>

The trick is to give the container div a position relative and then you can use the position absolute in the bottom div element. If the container div has no position style atribute it will not work.