0110 118 76 V0111 0111 119 77 W0111 1000 120 78 X0111 1001 121 79 y0111 1010 122 7A Z0111 1011 123 7b {0111 1100 124 7C |0111 1101 125 7d}0111 1110 126 7E ~
0111 1111 127 7f del (delete) DeleteThere are also 128-255 ASCII charactersBrief character set historyHieroglyphics before January 1, 6000Alphabet before January 1, 3000From 1838 to 1854, Samuel F. B. Morse invented the telegraph. Each character in the alphabet corresponds to a series of short and long pulses.Louis
(). WidthResize.orientationchangeVi. Media EnquiryAll mediaBraille Braille Tactile DevicesEmbossed Braille PrinterPrint handheld deviceProjection Print PreviewScreen Color EquipmentSpeech ' auditory ' similar media typesTTY non-pixel-compatible devicesTvVii. characteristics of the mediaMin-width resolution width greater than or equal to device is worth recognizingMax-width when the resolution width is less
Four, CSS properties:
1. Media type
One of the most important features of a style sheet is that it can be used in a variety of media, such as pages, screens, electronic synthesizers, and so on. Specific properties can only be applied to specific media, such as the "Font-size" property is valid only for scrolling media types (screen).
Declaring a media property can be introduced with @import or @media:
@import URL (loudvoice.css) speech;
@media Print {
/* style sheet for print goes here * *
}
You
CSS3 provides the concept of media Queries, which you can use to query the following data:1, the width and height of the browser window;2, the width and height of equipment;3, the equipment hand-held direction, horizontal/vertical;4, resolution.The syntax format for @media rules is as follows:@media: (1) Edia>: Specifies the device name. The CSS device types include the following:,
All: for all devices.
Aural: For speech and music synthesizers.
), submitted to computer screens;
Print, output to 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.
Finally, the question is added. Divided into IE, Firefox and other three kinds of browser. The decision viewer also uses individual private properties or methods. If styleshee
text of the site can change over time to adapt to the changes in the background. The author is doing very well, there is no problem in font size and typesetting! More interestingly, the site supports up to 10 languages, including Braille. Small Yi First also do not understand, but later read some articles to know actually blind also can "listen" Webpage! So little Yi has reason to believe that the necessity of the existence of
resources called a whole, departmental resources called a whole, and because the UED department has a certain supply relationship, so we need to clarify the relationship between the resources of the whole case.
Classification of archives by category
On the Division of Class purpose, referring to the file management system of a party committee, the definition of the file level of the party committee is divided into seven categories: that is (1) Party archives (for the word: A); (2) Infrastruct
. First is the fade image color, select Image > Adjust > Hue and Saturation in the main menu, and set saturation to 0. Then select Image > Adjust > Levels, as shown in the following illustration, to set the black block to 99, and the white block to 205. Set as shown in the following figure.
Figure 03
Step: 4
Create a new layer in the Layers panel, named "Brown", with a dark gray #5a5855 fill color. Place the new layer under "Girl 1" and select the white area of "Girl 1", and choose to remove
button in the navigation bar
Plus (+) icon
Drag icon
1. Page number indicator (small dot)
The iOS page number indicator, in the form of horizontal dots, is used to represent a series of paging views that can be browsed horizontally. The dots that represent the current view are highlighted, while others are dimmed translucent states.
The first screen of the iOS system, the page number ind
, mainly through the relaxation variables (also called penalty variables) and kernel function technology to achieve, this part is also the essence of SVM.
First, linear classification
For the simplest case, in a two-dimensional space, it is necessary to classify the white dots and black dots shown in the following illustration, obviously, this line in the following diagram satisfies our requirements, and
Source: http://www.jb51.net/web/70358.htmlCSS Controls page print style :Using CSS to control the print style, the grip just use a mess, do not know what the role of CSS in the Midia, asked others said to import this style, but also silly at a loss. If you also have this phenomenon, then I tell you, in W3school to find the role of CSS Midia.Midia Definition and usage :The media attribute specifies what device the linked document will be displayed on.The media property is used to specify differen
equal ". For example, width supports min-width and max-width media queries, which can be used in the @ media and @ import rules in CSS or in HTML and XML. With this tag attribute, we can easily implement a wide variety of interfaces on different devices ** 2. Values that Media can obtain ** device width and height: device-width, device-height display screen/tactile device rendering window width and height: width, heigth display screen/tactile device handheld direction: orientation (portrait | l
1. First declare the correct document type DOCTYPEThere are typically four document types to choose from:DOCTYPE is defined before HTML to tell the browser that the page contains HTML, XHTML, or both, so that the browser can parse the label correctly. According to research, most browsers will parse this statement in a common way, so most of them use the HTML4.01 standard.2. When writing HTML, try not to use an embedded CSS style, because doing so will cause problems in your code, so it is best t
is also good. 14. Monitor the power consumption of each applicationIOS8 also has a deep hidden feature, which opens the Battery usage menu in the settings, and users will find that the percentage of power consumed in recent apps is on the inside, at a glance. After such monitoring, it is really the most power consumption of the camera!15. Braille KeyboardIOS8 finally added a braille keyboard. For the blind
: 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 are exporting to multiple media, you can separate the table of values with commas.
The Rel attribute indicates how the style sheet will be combined with an HTML document. Range of values:
· Styleshe
: Output to Speaker
· Braille: Output to Braille tactile sensing device
· Tty: Output to telex typewriter
· All: output to all devices above
If you are exporting to multiple media, you can separate the table of values with commas.
The Rel attribute indicates how the style sheet will be combined with an HTML document. Range of values:
· Stylesheet: Specify an external style sheet
· Alternate stylesheet: Spec
How to use CSS @media print to control printing?==================================================================== @media version: CSS2 Compatibility: ie5+Grammar:@media Smedia {Srules}DescriptionSmedia: Specifies the device name. See Appendix: Device Type srules: style sheet definitionSpecifies a style sheet rule for the specified device type. See the link object's media properties (attributes).Example:Set the display Font size @media screen {BODY {font-size:12pt;}}Set the font size for the p
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
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