Operation Manual
Creating media queries (CS5.5 and later)
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Create a media query
Use an existing media queries file
Choose a different site-wide media queries file
Viewing web pages based on media query
You can use media queries to specify CSS files based on the reported characteristics of a device. 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/.
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 file Specifies 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 query The 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">
6. Do one of the following:
Click "+" to define the properties for the media query file.
Click Default Presets if you want to begin with standard presets.
7. Select rows in the table, and edit their properties using the options under Properties.
Description The description of the device for which the CSS file must be used. For example, phone, TV, tablet, and so on.
Min Width and Max width The CSS file is used for devices whose reported width is within the specified values.
Note: Leave either Min Width or Max Width blank if you do not want to specify an explicit range for a device. For example, it
is common to leave Min Width blank if you want to target phones, which are 320px wide, or less.
CSS file Select Use Existing File, and browse to the CSS file for the device.
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