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Adding a background image to a element

... id="div-with-bg"></div> CSS: #div-with-bg { background: color url('path') others; } By Class HTML: <div class="div-with-bg"></div> CSS: .div-with-bg { background: color url('path') others; } In HTML (which is evil) HTML: <div style="background: color ur...
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Linux日志管理Rsyslog入门 - C/C++ - 清泛网移动版 - 专注C/C++及内核技术

...reen. # kern.* /dev/console # Log anything (except mail) of level info or higher. # Don't log private authentication messages! *.info;mail.none;authpriv.none;cron.none /var/log/messages # The authpriv file has restricted access. authpriv.* /var/log/secure # Log all the mail messages in ...
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Set the value of a variable with the result of a command in a Windows batch file

When working in a Bash environment, to set the value of a variable as the result of a command, I usually do: 5 Answers ...
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Get element from within an iFrame

...nt) ? iframe.contentDocument : iframe.contentWindow.document; You could more simply write: var iframe = document.getElementById('iframeId'); var innerDoc = iframe.contentDocument || iframe.contentWindow.document; and the first valid inner doc will be returned. Once you get the inner doc, you c...
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Rails 3.1: Engine vs. Mountable App

... in parent_app/config/routes.rb. Specifying the gem in Gemfile is enough for the parent app to inherit the models, routes etc. The engine routes are specified as: # my_engine/config/routes.rb Rails.application.routes.draw do # whatever end No namespacing of models, controllers, etc. The...
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difference between variables inside and outside of __init__()

... That's not what python does for me. Lists/dicts/etc get shared between all instances if you don't create them in __init__(). – too much php Oct 8 '09 at 11:43 ...
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Center content in responsive bootstrap navbar

...bootstrap navbar. I'm using bootstrap 3. I've read many posts, but the CSS or methods used will not work with my code! I'm really frustrated, so this is like my last option. Any help would be appreciated! ...
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What is a correct mime type for docx, pptx etc?

For older *.doc documents this was enough: 10 Answers 10 ...
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HTML5 textarea placeholder not appearing

I cannot figure out what is wrong with my markup, but the placeholder for the text area will not appear. It seems as though it may be covered up with some blank spaces and tabs. When you focus on the text area and delete from where the cursor puts itself, then leave the text area, the proper placeho...
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How to specify new GCC path for CMake

... Do not overwrite CMAKE_C_COMPILER, but export CC (and CXX) before calling cmake: export CC=/usr/local/bin/gcc export CXX=/usr/local/bin/g++ cmake /path/to/your/project make The export only needs to be done once, the first time you configure the project, then those...