css - Why does it need left property to be centered? -

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i go site: http://www.domdesignonline.de/.

take @ div#siteend, don't understand why centered, needs left property. i'm css beginner.

thanks first.

div#siteend has width of 100% , contained in div less 100% wide.

this means if doesn't have left:0; left side of bounding box on inner-leftside of parent item (div#wrap).

you leave out left:0; , make width of div#siteend same div#wrap , achieve same effect.


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