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Last updated 6/3/2015
Chapter 14: Mobile and multiscreen
Creating media queries
You can use media queries to specify CSS files based on the reported characteristics of a device (responsive design). The
browser on a device checks the media query and uses the corresponding CSS file to display the web page.
For example, the following media query specifies the phone.css file for devices that are 300-320 pixels wide.
<link href="css/orig/phone.css" rel="stylesheet" type="text/css" media="all and (min-width:
300px) and (max-width: 320px)">
For an extensive introduction to media queries see Don Booth’s article on the Adobe Developer Center
www.adobe.com/go/learn_dw_medquery_don_en.
For more information on media queries from the W3C see www.w3.org/TR/css3-mediaqueries/.
More Help topics
Responsive design using fluid grid layouts
Create a media query
In Dreamweaver, you can create a site-wide media query file, or a document-specific media query. Site-wide media
query fileSpecifies display settings for all pages in your site that include the file.The site-wide media query file acts as
the central repository for all media queries in your site. After you create this file, link to it from pages in your site that
must use the media queries in the file for their display.Document-specific media queryThe media query is inserted
directly into the document, and the page is displayed based on the inserted media query.
1 Create a web page.
2 Select Modify > Media Queries.
3 Do one of the following:
• To create a site-wide media query file, select Site Wide Media Queries File.
• To create a document-specific media query, select This Document.
4 For site-wide media query, do the following:
a Click Specify.
b Select Create New File.
c Specify a name for the file, and click OK.
5 It is possible that some devices do not report their actual width. To force devices to report their actual width, ensure
that the option Force Devices To Report Actual Width is enabled.
The following code is inserted into your file when you choose this option.
<meta name="viewport" content="width=device-width">
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