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Index: M

colors, but they're what we have.

So let's say we want all first-level headings to be maroon. Thebest declaration would be:

H1 {color: maroon;}

Simple, straightforward, and difficult to forget. It doesn'tget much better than that. Here are a few more examples:

H1 {color: gray;}

margin-bottom property: 7.3.4. Single-Side Margin Properties
margin-left property: 7.3.4. Single-Side Margin Properties
margin property: 7.3. Margins
margin-right property: 7.3.4. Single-Side Margin Properties
margin-top property: 7.3.4. Single-Side Margin Properties
margins: 7. Boxes and Borders
7.3. Margins
collapsing: 7.3.5. Collapsing Margins
block-level elements: Collapsing vertical margins
floated elements: 7.6.1. Floated Elements
horizontal, noncollapsing: 8.2.2. Horizontal Formatting
inline elements and: 7.3.7. Margins and Inline Elements
caution with: 7.3.8. Margins: Known Issues
length values and: 7.3.1. Length Values and Margins
negative (see negative margins)
vs. padding: 7.2. Margins or Padding?
percentages and: 7.3.2. Percentages and Margins
replication: 7.3.3. Replicating Values
single side, setting margin for: 7.3.4. Single-Side Margin Properties
table cells and: 1.3.1. Limited Initial Scope
markers: 8.2.3. List Items
8.2.3. List Items
10.4.2. Markers
matching hyphenated values: Matching hyphenated values
matching single attribute values: Matching single attribute values
max-height property: Limiting width and height
max-width property: Limiting width and height
media types: 1.3.1. Limited Initial Scope
10.8. Media Types and @-rules
Microsoft Internet Explorer (see Internet Explorer)
middle alignment: In the middle
millimeters (mm): 3.2.1. Absolute Length Units
min-height property: Limiting width and height
min-max properties: Limiting width and height
min-width property: Limiting width and height
monospace fonts: 5.1. Font Families
multiple pages, using styles on: 1.2.3. Using Your Styles on Multiple Pages

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7.3.8. Margins: Known Issues

As useful as margins are, a number of problems can arise with their use -- enough, in fact, that they warrant their own section, instead of just a small warning box.

The first is that Navigator 4.x generally adds margin rules to its built-in margins, instead of replacing the built-in values. For example, let's say you want to eliminate the space between H1 elements and paragraphs. Here's the

However, all of this is true only for the top and bottom sides of inline elements; the left and right sides are a different story altogether. We'll start by considering the simple case of a small inline element within a single line, as depicted in Figure 7-22.

Figure 7-22

Figure 7-22. A single-line inline element with a left margin

Here, if we set values for the left or right margin, they will be visible, as Figure 7-23 makes obvious: