Depending on the browser, there will always be a default 8px margin or padding on either html or body element.
Example as shown below with red arrows:

To remove these so called “slack space”, do the following on your body tag in your CSS stylesheet:
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| html, body{
margin: 0 auto;
padding: 0;
} |
This will overwrite the default margin or padding that your browser has set. Now lets see the aftermath:

Willie Programming
For every web developers, they certainly can’t live without Firebug because it is a good debugging script for web development. But, we all know that it’s an add-on only for Firefox. What about other browsers?
Don’t WORRY! The firebug that supports other browsers, called Firebug Lite, is here to save us!
As of now, it supports browsers like:

Screenshot of Firebug Lite in Google Chrome:

Just double-click, bookmark or drag Firebug Lite into your bookmarks bar and it’s good to go!
Amazing right? For more information, visit http://getfirebug.com/lite.html
Willie Software
This is definitely one of the best free anti-virus out there as it has high detection rate compared to AVG and AVast. Source
However, whenever you complete an update of this anti-virus, there will be an irritating pop-up. This is caused by avnotify.exe residing in the installation folder. To disable the pop-up, we need to restrict the access of this bugger.
Do take a good look at here. It tells you how to disable it and the anti-virus is good to go! No more annoying and irritating pop-up!
Cheers!
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