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Mobile web development pixel and DPR, web pixel dpr* Directory [1] Definition [2] classification [3] 3 P [4] scaling [5] DPR [6] before API Pixels are used almost every day in web development. But what are pixels? Are there any differences between pixels on the mobile end an

640*1136 pictures cannot be fully displayed on the Ipone?Iphone5 Resolution: 640*1136 (claimed--device independent pixels)Why Iphone5 is 320px*568px?Px:css pixels logical pixels, abstract units used by the browser (can be larger and smaller depending on the device)Dp,pt:device indipendent pixels device independent pixels (physical pixels fixed, not larger and smaller as logical pixels)Dpr:devicepixelratio Device pixel scaling ratioCalculation formula:

content description in the http://www.cnblogs.com/2050/p/3877280.html article: In the mobile browser and in some desktop browsers, the Window object has a Devicepixelratio property, which is officially defined as the ratio of the physical pixels of the device to the device's independent pixels, i.e. Devicepixelratio = physical pixels/independent pixels.CSS pixels can be viewed as independent pixels of the device, so by devicepixelratio we ca

[1] definition [2] classification [3] scaling [4]DPR[5]API front wordsPixels are used almost every day in web development, but what exactly is a pixel, is there a difference between the pixel on the mobile and the desktop, and how does scaling affect the pixel, and what does

Mobile web development pixel and DPR-little match Blue ideal * Directory [1] Definition [2] classification [3] scaling [4] DPR [5] APIPrevious Pixels are used almost every day in web development. But what are pixels? Are there any differences between pixels on the mobile end and the desktop end? Does scaling affect pix

= device pixel/css pixel (in One Direction)In previous mobile devices, there was no concept of DPR. With the development of technology, the screen pixel density of mobile devices is getting higher. Starting with iphone4, Apple unveiled the so-called Retina Retina screen. It

Basic mobile phone resolution knowledge (DPI, DIP computing) 1. terms and concepts Terms Description Remarks Screen size) It refers to the actual physical size of the mobile phone, such as the commonly used 2.8 inch, 3.2 inch, 3.5 inch, 3.7 inch Motorola's milestone mobile phone is 3.7 inch Aspect Ratio (width/height Ratio)

xCatalog [1] definition [2] classification [3]3p[4] scaling [5]DPR[6]API front wordsPixels are used almost every day in web development, but what exactly is a pixel, is there a difference between the pixel on the mobile and the desktop, and how does scaling affect the pixel,

One, why there is a pixel problemTo understand this problem, we must first know the DPR.The DPR (device pixel ratio) pixel equals the picture element. Device pixel ratio, which is the default scale of 100%, that is, the number of dpr= device pixels/The number of ideal viewport pixels (device-width).1. Device pixels: ph

Due to the problem of mobile phone DPR (device pixel ratio), there are often 1 pixel border problems in WebApp, the solution is as followsThe following code implements BORDER-1PX ($color) {position:relative using sylus ; :after{ Display:block; Position:absolute; left:0; bottom:0; border-top:1px solid $color; Content

Since the amid Lord has raised the retina screen. Can have a lot of front-end brothers of the pixel eye, obsessive-compulsive partners days can be suffering. To draw a true 1-pixel border, the front-end apes were abused by browsers.About what is the mobile side 1 pixel border problem, first on the two pictures, we will

Recently has been in the Vue Mobile project, every time at the beginning to solve the problem of BORDER:1PX, referring to Daniel's article himself summarized down as a noteReference:Zhang Xin Xu: http://www.zhangxinxu.com/wordpress/2012/08/window-devicepixelratio/Https://www.cnblogs.com/lunarorbitx/p/5287309.htmlCause:in the On the Retina screen (Retina is a pixel-compressed screen that compresses more pixe

PX:css pixels logical pixels, abstract units used by the browserDP (Android), PT (IOS):device independent pixels devices-independent pixels, logical pixelsDPR:devicepixelratio device pixel scaling ratioDPi: Ink dots that can be sprayed on the printer per inch (printing industry)PPI: The number of pixels per inch of the screen, which is the pixel density in units of inchesAt present, in the computer display

1 /*Half Pixel*/2 . Halfpxline_after,. Halfpxline_before{3 position:relative;4}5 6 . Halfpxline_after:after,. Halfpxline_before:before{7 content:"';8 Display:Block;9 position:Absolute;Ten Left:0; One Right:0; A Height:1px; - Background-color:#e5e5e5; - -webkit-transform:ScaleY (0.5); the Transform:ScaleY (0.5); -} - - . Halfpxline_after:after{ + Bottom:0; - -webkit-transform-origin:0 1px; + Transform-ori

Red M Note 2 How does it look Mobile phone configuration, Red meter note 2 using a 5.5-inch 1080p display, with MT6795 eight core 2GHz processor (high version of mt6795t eight 2.2GHz), built-in 2GB memory and 16/32GB fuselage storage space, Provides a 5 million-pixel front camera and a 13 million-

click to trigger the TAP event, and if the touchend has already been processed, click does not process.② captures the Click event globally if the Click event is consistent with the hit coordinates of the tap event and is less than 1s apart. The default behavior of the event is blocked at the capture stage and the bubbling is canceled.8.chrome Debugging shortcut keys①ctrl+shift+f Full Text Search②ctrl+o Find file names③ctrl+shift+o Find JS function name9. Elastic imageMainly used in the percent

the backend.The main function point of the system and the PACs based on HTML5 are not listed here, to view HTML5-based PACs please refer to the link:http://www.cnblogs.com/poxiao/p/3540688.html Next use IE browser to see the approximate effect1.FLEX program features, right-click anywhere in the window, display Flex Properties Menu2. Expand view images by sequence3. Expand view Image by Image4. How to Layout5. Image Magnifier Effect6. Display Image Dicom information7. Rotate the image at any ang