certain devices, such as @media not print (non-printing devices),Only: Used to set a particular type of media. For mobile devices that support media queries, if the only keyword exists, the mobile device's Web browser ignores the only keyword and applies the style file directly to the following expression. For devices that do not support media queries but are able to read a Web browser of type media type, the style file is ignored when the only keyword is encountered.All: All devices, this shou
@ Meda media query, @ meda MediaDefinition and use
With @ media query, you can define different styles for different media types.
@ Media can set different styles for different screen sizes, especially if you need to set a responsive page, @ media is very useful.
When you reset the browser size, the page will be re-rendered based on the browser width and height.Browser support
The number in the table indicates the version number of the first browser that supports the @ media rule.
Rule
;Projection, submitted to the projector;Aural, loudspeaker;Braille, submitted to Braille tactile sensing device;TTY, telex (using fixed fonts);TV, TV;All, output devices.An external style sheet is ideal when a style is applied to many pages. Web makers use an external style sheet to change the look of the entire site and simply change a file. Similarly, most browsers save an external style sheet in a buffer
You can use the Media property to specify the style that is used for different media when you experience the effects that appear on the screen in your project and when you print them differently.Media Property Value:
Value
Describe
Screen
computer screen display (default)
Tty
Telex typewriters and similar media using a wide character grid
Tv
TV type equipment (low resolution, limited scrolling capability)
P
(relative URL). This property is required. Type= "Text/css"This property is used to declare the data type of the linked document. When a CSS style sheet is linked, only the value of TEXT/CSS is allowed. Other stylesheet languages need to write different values (for example, text/xsl). This property is required. Media= "..."Using this property, you can declare that a style sheet applies only to certain devices. The default value is all, which means that the style document will be used on all dev
. Value range:
· Screen (default): Output to computer screens
· Print: Output to printer
· TV: Output to TV
· Projection: Output to projector
· Aural: Output to Speaker
· Braille: Output to Braille tactile sensing device
· Tty: Output to telex typewriter
· All: output to all devices above
If you want to output to multiple media, you can separate the values table with commas.
The
: Output to TV· Projection: Output to projector· Aural: Output to Speakers· Braille: Output to Braille tactile sensing devices· Tty: Output to Fax typewriter· All: output to all devices aboveIf you want to output to multiple media, you can separate the values table with commas.The Rel property indicates how the style sheet will be combined with the HTML document. Value range:· Stylesheet: Specify an externa
printer;Projection, submitted to the projector;Aural, loudspeaker;Braille, submitted to Braille tactile sensing device;TTY, telex (using fixed fonts);TV, TV;All, output devices.An external style sheet is ideal when a style is applied to many pages. Web makers use an external style sheet to change the look of the entire site and simply change a file. Similarly, most browsers save an external style sheet in
In the previous example we talked about a lot of devices, such as flashlights, relays, and two encodings: Morse code and Braille Braille, which are very much connected to our well-known binary numbers.
Binary numbers we already know, and here are a few examples:
1. Determine the quality of the film. We pulled the film apart and found 12 squares, made of silver and black. Silver is a conductor, can conduct e
a Web page that uses a style sheet. Value range:
· Screen (default): Output to computer screens
· Print: Output to printer
· TV: Output to TV
· Projection: Output to projector
· Aural: Output to Speakers
· Braille: Output to Braille tactile sensing devices
· Tty: Output to Fax typewriter
· All: output to all devices above
If you want to output to multiple media, you can separate the values table w
· Projection: Output to projector
· Aural: Output to Speakers
· Braille: Output to Braille tactile sensing devices
· Tty: Output to Fax typewriter
· All: output to all devices above
If you want to output to multiple media, you can separate the values table with commas.
The Rel property indicates how the style sheet will be combined with the HTML document. Value range:
· Stylesheet: Specify an external styl
Questions about generating two-dimensional code using php: the printed content contains the 2DDataMatrix tag. I am Baidu: I cannot find the PHP-generated DataMatrix class. 1. how to generate the DataMatrix code? 2. After I use QR2Dshengch, can the other party read it? Thank you ., 1. Questions about generating two-dimensional code through http: php
Customer requirements: the printed content contains 2D Data Matrix labels.
I tried Baidu:
The PHP Data Matrix class cannot be found.
1. how to
Questions about generating two-dimensional code using php: the printed content contains the 2DDataMatrix tag. I am Baidu: I cannot find the PHP-generated DataMatrix class. 1. how to generate the DataMatrix code? 2. After I use QR2Dshengch, can the other party read it? Thank you. ------ Solution ------------------ 1. doubts about phpqrcode. source php generating two-dimensional barcode
Customer requirements: the printed content contains 2D Data Matrix labels.
I tried Baidu:
The PHP Data Matrix c
Software required for development:
1. Integrated Development Environment ide:
Embedded Visual C ++ 4.0 (EVC) or Visual Studio 2005 + Microsoft. NET Compact Framework 2.0 SP2
2. Development Interface package:
Smartphone 2003 SDK and Pocket PC 2003 SDK or Windows Mobile 6 standard SDKSoftware required for debugging:
1. Smartphone simulator:
Chinese (simplified) emulation Images
2. synchronization software wit
framework developers create high-quality vector graphics output.
----------------------------------------------- Begin ---------------------------------------------
Title: tablet 101 column 3: strokes and Recognition
Time: 11:00:00 |
Introduction: This article introduces the object model used for ink collection and recognition. We will analyze the mechanism for collecting ink and the logical positioning and identification of ink strokes.
----------------------------------------------- Begin ---
With the advent of the smartphone industry in the second half of the year, almost all mobile phone companies have invariably played the "full screen" concept.Samsung is the "initiator" of this trend-it has launched a number of comprehensive screen mobile phone products, domestic mobile phone brands have to carry out a comprehensive follow-up this step, and from the Micro-blog released by the warm-up picture, the trend of the full screen trend has beco
, the handset designer can design the user interface and application software more freely.2) Mobile phone developers, such as Motorola, will develop the mobile phone package into the AP and BP two parts, running on the application Processor (AP) package called AP package, including operating system, user interface and applications; The packages associated with baseband Processor (BP) are called BP packages, including communication control software for baseband modems. Accordingly, the so-called
In this year's domestic mobile phone, Huawei, Millet, OPPO, vivo performance eye-catching, including Oppo/vivo in the third quarter and even the reverse attack Huawei/millet, become the highest shipments of smartphone brands. Tall tree catches, now on the internet can often see a lot of people look down on oppo, Vivo, this is why?
OPPO r9s
In fact, the root of the contempt is: the OV manufacturers to avoid high price low match! Why
5.4 Rowley Sir, when the return trip occurred the attack in the terminal.Finally, when Mr. Rowley decided to sync his address book on his smartphone and laptop, he connected the two with a data cable. However, the hacker has set up a computer with Bluetooth * * * installed in the terminal. Hackers know that such a place would attract high-end people from some of the market-classified information of the holders. After analyzing the data exchanged by Ro
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