Book HomeCascading Style Sheets: The Definitive GuideSearch this book Friday 19th of January 2018 12:53:17 AM

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7.5.4. Padding: Known Issues

In the first place, padding and Navigator 4.x just plain don't getalong. The main problem is that you can set padding on an elementwith a background color, but the background won't extend intothe padding unless you get very sneaky. You need to add a border, aswas discussed earlier in "Margins: Known Issues."

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elements. For example, we could absolutely position an element andthen absolutely position one of its children, as shown in Figure 9-23.

Figure 9-23

Figure 9-23. Nested absolutely positioned elements

The small box B in the lower-left corner of the element A is a childof A, which is in turn a child of a relatively positionedDIV. B was absolutely positioned, as was elementA, using styles like these:

DIV {position: relative;}
Figure 8-43

Figure 8-43. The details of floating up and left with negative margins

The math in this situation works out something like this: assume thetop inner edge of the DIV is at the pixel position 100. The browser,in order to figure out where the top inner edge of the floatedelement should be will do this: 100px+ (-15px)margin + 0padding =85px . Thus the top inner edge of the floatedelement should be at pixel position 85; even though this is higher