HTML and CSS Reference
In-Depth Information
FIGURE 8.12 Viewport helps
you to better display content
on a mobile device.
The viewport meta tag is not just limited to forcing browsers to tell the truth
about the site's width or height. You can also do the following:
Set a specific width or height to render at. This is done using a number
for the width or height value. For example,
<meta name=”viewport” content=”width=320”>
Set an initial zoom factor for your content. This is done using initial-
scale and a zoom factor:
<meta name=”viewport” content=”initial-scale=1.5”>
Such values work just like CSS scale transforms: 1.5 means “zoom in by
50%,” 0.75 means “zoom out to 75% of initial size,” and so on.
Set the target pixel density. As you'll see later in the “High-fidelity Devices”
section, devices with high resolutions will often have multiple physical
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