Closed
Bug 156189
Opened 22 years ago
Closed 22 years ago
padding on CSS floats adds to the box dimensions
Categories
(Core :: CSS Parsing and Computation, defect)
Tracking
()
RESOLVED
INVALID
People
(Reporter: cclarkson, Assigned: dbaron)
Details
From Bugzilla Helper: User-Agent: Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.1a) Gecko/20020611 BuildID: 2002061104 The padding on CSS floats adds dimensions to the box. .float { background: gray; float: right; clear: both; width: 200px; height: 100px; top: 25px; } The box above is rendered as 200 pixels wide and 100 pixels high. The box below is rendered as 220 pixels wide and 120 pixels high. .float_padded { background: green; float: right; width: 200px; height: 100px; top: 175px; padding: 10px; } Reproducible: Always Steps to Reproduce: 1. The following document will render 3 colored boxes. 2. Each box should be the same size. 3. Box 2 has been padded, but the dimensions are 220 X 120. The padding has expanded the box on all sides. <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <title>Stephenville Optimist Links</title> <style> body { background: white; color: black; } .box { position: absolute; width: 420px; height: 400px; border: solid red 1px; top: 100px; left: 100px; } /* 1 */ .float_left { background: gray; float: left; width: 200px; height: 100px; top: 25px; } /* 2 */ .float { background: gray; float: right; clear: both; width: 200px; height: 100px; top: 25px; } /* 3 */ .float_padded { background: green; float: right; width: 200px; height: 100px; top: 175px; padding: 10px; } </style> </head> <body> <div class="box"> <div class="float_left"> 1 </div> <div class="float_padded"> 2 </div> <div class="float"> 3 </div> </div> </body> </html> Actual Results: Box 2 expanded to add padding. Expected Results: Box 2 should remain the same size and shrink the inner content box. I tested this with both recommended DTDs from the bug page and received the same result. As a reminder, the box model under CSS is: margin:border:padding:content
Comment 1•22 years ago
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> As a reminder, the box model under CSS is:
>
> margin:border:padding:content
Yes, and "width" sets the width of _content_ while the background is painted
under content and padding. So the layout you are seeing is in fact correct.
IE/Windows is known to get this completely wrong. IE/Mac renders it the same
way as Mozilla.
Status: UNCONFIRMED → RESOLVED
Closed: 22 years ago
Resolution: --- → INVALID
Assignee | ||
Comment 2•22 years ago
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Note that IE6/Win gets it correct in its standards mode (if you have a reasonably modern DOCTYPE, etc.).
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Description
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