While this does rely on inserting an extra element, the advantage is that the SPAN can be placed anywhere in the paragraph and still have the result depicted in Figure 9-21.
However, maybe we'd like to place the change marker next to whatever line was changed. In that case, we need to make only one
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5. A floating element's top may not be higher thanthe top of any earlier floating or block-level element.
Similar to rule 4, this keeps a floated element from floating all theway to the top of its parent element. Thus, if aDIV 's first child element is a paragraph,followed by a floated image and then another paragraph, the top of
As you can see, this property accepts any length value or apercentage. That's all. So if you want allH1 elements to have 10 pixels of padding on allsides, it's this easy, as the result shown in Figure 7-56 makes clear:
H1 {padding: 10px; background-color: silver;}
On the other hand, we might want H1 elements tohave uneven padding and H2 elements to have regular padding, as shown effect, as depicted in Figure 7-34:
P.new1 {border-style: solid dashed none;}
P.new2 {border-style: solid dashed none dashed;}
In case you're wondering, under CSS1, there is no way to directly set the style for only a single side using something like border-top-style, since no such property exists in CSS1 (although that property, and others like it, were introduced in CSS2). You can, however, sneak around this limitation by declaring
However, this will allow floated elements to appear on the right sideof H2 elements, as shown in Figure 7-75.
To avoid this sort of thing, and to make sure thatH2 elements do not coexist on a line with anyfloated elements, we use the value both. Thisvalue prevents coexistence with floated elements on both sides of theelement, as shown in Figure 7-76: