Modern CSS by Joe Attardi

Author:Joe Attardi
Language: eng
Format: epub
ISBN: 9781484262948
Publisher: Apress

.inner {

border: 5px solid green;

margin: 1rem;

}

</style>

<div class="container">

<div class="inner">Hello world!</div>

</div>

Listing 7-3Adding margin

Now there is a margin of 1rem between the inner and outer borders, as shown in Figure 7-4.

Figure 7-4Margin between the inner and outer borders

Like padding, using a percentage for the margin property will set the given percentage of the containing block’s width as the margin.

Centering with margin: auto

The margin property also accepts the auto value. When the horizontal (left and right) margin is set to auto in a block or inline-block element, the element is centered horizontally within its containing element. The element takes up the specified width, and the margin is automatically distributed evenly between the left and right margins.

However, the same is not true for vertical margin. However, as we will see later, there are several other ways to vertically center a block-level element.<style>

.container {

background-color: red;

height: 5rem;

padding: 1rem;

width: 20rem;

}

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