Responsive設計在現代Web設計中可謂是越來越流行，但很同學們并未理解其真正的設計概念，往往把Responsive視為一種自適應布局。當然有很多同學也在嘗試動寫Responsive的案例，但如何取其斷點左右糾結，如何設置哪幾個斷點?又從何入手?

Responsive中的斷點都依賴于CSS3的Media Queries來決斷。曾在CSS3 Media Queries模板、使用em單位創建CSS3的Media Queries和iPads和iPones的Media Queries有過這方面的介紹。今天特意根據一些Responsive框架整理了一些常見的Media Queries片段，以供大家參考：

CSS3 Media Queries片段

在這里主要分成三類：移動端、PC端以及一些常見的響應式框架的Media Queries片段。

移動端Media Queries片段

iPhone5

@media screen and (device-aspect-ratio: 40/71) {}

或者：

@media screen and (device-width: 320px) and (device-height: 568px) and (-webkit-device-pixel-ratio: 2){}

iPhone 5 In Portrait & Landscape

@media only screen

and (min-device-width : 320px)

and (max-device-width : 568px){

// CSS Style

}

iPhone 5 In Landscape

@media only screen

and (min-device-width : 320px)

and (max-device-width : 568px)

and (orientation : landscape){

// CSS Style

}

iPhone 5 In Portrait

@media only screen

and (min-device-width : 320px)

and (max-device-width : 568px)

and (orientation : portrait){

// CSS Style

}

iPone4

@media only screen and (-webkit-min-device-pixel-ratio : 1.5), only screen and (min-device-pixel-ratio : 1.5) {}

iPhone 3G

@media screen and (device-width: 320px) and (device-height: 480px) and (-webkit-device-pixel-ratio: 1){}

iPhone

/*Landscape*/

@media screen and (max-device-width: 480px) {}

/*Portrait*/

@media screen and (max-device-width: 320px) {}

Blackberry Torch

@media screen and (max-device-width: 480px) {}

Samsung S3

@media only screen and (-webkit-device-pixel-ratio: 2) {}

Google Nexus 7

@media screen and (device-width: 600px) and (device-height: 905px) and (-webkit-min-device-pixel-ratio: 1.331) and (-webkit-max-device-pixel-ratio: 1.332) {}

Samsung Galaxy S3

@media only screen and (-webkit-device-pixel-ratio: 2) {}

Samsung Galaxy S2

@media screen and (device-width: 320px) and (device-height: 533px) and (-webkit-device-pixel-ratio: 1.5) {}

Galaxy Tab 10.1

/*Landscape*/

@media (max-device-width: 1280px) and (orientation: landscape) {}

/*Portrait*/

@media (max-device-width: 800px) and (orientation: portrait) {}

iPad In Portrait & Landscape

@media only screen

and (min-device-width : 768px)

and (max-device-width : 1024px){

// CSS Styles

}

iPad In Landscape

@media only screen

and (min-device-width : 768px)

and (max-device-width : 1024px)

and (orientation : landscape){

// CSS Styles

}

iPad In Portrait

@media only screen

and (min-device-width : 768px)

and (max-device-width : 1024px)

and (orientation : portrait){

// CSS Styles

}

Retina iPad In Portrait & Landscape

@media only screen

and (min-device-width : 768px)

and (max-device-width : 1024px)

and (-webkit-min-device-pixel-ratio: 2){

// CSS Styles

}

Retina iPad in landscape

@media only screen

and (min-device-width : 768px)

and (max-device-width : 1024px)

and (orientation : landscape)

and (-webkit-min-device-pixel-ratio: 2){

// CSS Styles

}

Retina iPad in portrait

@media only screen

and (min-device-width : 768px)

and (max-device-width : 1024px)

and (orientation : portrait)

and (-webkit-min-device-pixel-ratio: 2){

// CSS Styles

}

iPad Mini In Portrait & Landscape

@media only screen

and (min-device-width : 768px)

and (max-device-width : 1024px)

and (-webkit-min-device-pixel-ratio: 1){

// CSS Style

}

iPad Mini In Landscape

@media only screen

and (min-device-width : 768px)

and (max-device-width : 1024px)

and (orientation : landscape)

and (-webkit-min-device-pixel-ratio: 1){

// CSS Style

}

iPad Mini In Portrait

@media only screen

and (min-device-width : 768px)

and (max-device-width : 1024px)

and (orientation : portrait)

and (-webkit-min-device-pixel-ratio: 1) {

// CSS Style

}

桌面端

320px

@media screen and (max-width: 320px) {}

640px

@media screen and (max-width: 640px) {}

800px

@media screen and (max-width: 800px) {}

1024px

@media screen and (max-width: 1024px) {}

1028px

@media screen and (max-width: 1028px) {}

除了上面的常見Media Queries片段之外，下面的網站還提供了一些其他的片段：

 

框架Media Queries片段

Boilerplate

/*URL:http://HTML5/">html5boilerplate.com/*/

/* Smartphones (portrait and landscape) ----------- */

@media only screen

and (min-width : 320px)

and (max-width : 480px) {

/* Styles */

}

/* Smartphones (landscape) ----------- */

@media only screen

and (min-width : 321px) {

/* Styles */

}

/* Smartphones (portrait) ----------- */

@media only screen

and (max-width : 320px) {

/* Styles */

}

/* iPads (portrait and landscape) ----------- */

@media only screen

and (min-width : 768px)

and (max-width : 1024px) {

/* Styles */

}

/* iPads (landscape) ----------- */

@media only screen

and (min-width : 768px)

and (max-width : 1024px)

and (orientation : landscape) {

/* Styles */

}

/* iPads (portrait) ----------- */

@media only screen

and (min-width : 768px)

and (max-width : 1024px)

and (orientation : portrait) {

/* Styles */

}

/* Desktops and laptops ----------- */

@media only screen

and (min-width : 1224px) {

/* Styles */

}

/* Large screens ----------- */

@media only screen

and (min-width : 1824px) {

/* Styles */

}

/* iPhone 4 ----------- */

@media

only screen and (-webkit-min-device-pixel-ratio : 1.5),

only screen and (min-device-pixel-ratio : 1.5) {

/* Styles */

}

Bootstrap的Media Queries

/*URL:http://twitter.github.com/bootstrap*/

/* Large desktop */

@media (min-width: 1200px) { ... }

/* Portrait tablet to landscape and desktop */

@media (min-width: 768px) and (max-width: 979px) { ... }

/* Landscape phone to portrait tablet */

@media (max-width: 767px) { ... }

/* Landscape phones and down */

@media (max-width: 480px) { ... }

Foundation的Media Queries

/*URL:http://foundation.zurb.com/*/

/* We use this media query to add styles to any device that supports media queries */

@media only screen { }

/* Used to alter styles for screens at least 768px wide. This is where the grid changes. */

@media only screen and (min-width: 768px) {}

/* Used to alter styles for screens at least 1280px wide. */

@media only screen and (min-width: 1280px) {}

/* Used to alter styles for screens at least 1440px wide. */

@media only screen and (min-width: 1440px) {}

/* Apply styles to screens in landscape orientation */

@media only screen and (orientation: landscape) {}

/* Apply styles to screens in portrait orientation */

@media only screen and (orientation: portrait) {}

Skeleton的Media Queries

/*URL:http://www.getskeleton.com*/

/* Smaller than standard 960 (devices and browsers) */

@media only screen and (max-width: 959px) {}

/* Tablet Portrait size to standard 960 (devices and browsers) */

@media only screen and (min-width: 768px) and (max-width: 959px) {}

/* All Mobile Sizes (devices and browser) */

@media only screen and (max-width: 767px) {}

/* Mobile Landscape Size to Tablet Portrait (devices and browsers) */

@media only screen and (min-width: 480px) and (max-width: 767px) {}

/* Mobile Portrait Size to Mobile Landscape Size (devices and browsers) */

@media only screen and (max-width: 479px) {}

FRAMELESS的Media Queries

/*URL:http://framelessgrid.com/*/

@media screen and (max-width: 16.875em){}

@media screen and (min-width: 32.5em) and (max-width: 37.4375em),

screen and (min-width: 45em) and (max-width: 56.9375em),

screen and (min-width: 77.5em) and (max-width: 102.4375em),

screen and (min-width: 135em){}

@media screen and (min-width: 102.5em) and (max-width: 117.9375em),

screen and (min-width: 150em){}

@media screen and (min-width: 15em){}

@media screen and (min-width: 30em){}

@media screen and (min-width: 37.5em){}

@media screen and (min-width: 57em){}

@media screen and (min-width: 57em) and (max-width: 117.9375em){}

@media screen and (min-width: 118em){}

Susy的Media Queries

/*URL:http://susy.oddbird.net/*/

@media (min-width: 29em) {}

@media (min-width: 30em) and (max-width: 60em) {}

@media (min-width: 119em) {}

@media (min-width: 33.75em) and (max-width: 67.5em) {}

@media (min-width: 33.75em) and (max-width: 67.5em) {}

Less Framework 4

/*URL:http://lessframework.com/*/

@media only screen and (min-width: 768px) and (max-width: 991px) {}

/* Mobile Layout: 320px (20em). */

@media only screen and (max-width: 767px) {}

/*Wide Mobile Layout: 480px (30em)*/

@media only screen and (min-width: 480px) and (max-width: 767px) {}

Golden Grid System的Media Queries

/*URL:http://goldengridsystem.com/*/

/* @media screen and (min-width: 640px) */

@media screen and (min-width: 40em) {}

/* @media screen and (min-width: 720px) */

@media screen and (min-width: 45em) {}

/* @media screen and (min-width: 888px) */

@media screen and (min-width: 55.5em) {}

/* @media screen and (min-width: 984px) */

@media screen and (min-width: 61.5em) {}

/* @media screen and (min-width: 1200px) */

@media screen and (min-width: 75em) {}

/* @media screen and (min-width: 1392px) */

@media screen and (min-width: 87em) {}

/* @media screen and (min-width: 1680px) */

@media screen and (min-width: 105em) {}

/* @media screen and (min-width: 1872px) */

@media screen and (min-width: 117em) {}

/* @media screen and (min-width: 2080px) */

@media screen and (min-width: 130em) {}

Fluid baseline的Media Queries

/*URL:http://fluidbaselinegrid.com/*/

/* MOBILE PORTRAIT */

@media only screen and (min-width: 320px) {}

/* MOBILE LANDSCAPE */

@media only screen and (min-width: 480px) {}

/* SMALL TABLET */

@media only screen and (min-width: 600px) {}

/* TABLET/NETBOOK */

@media only screen and (min-width: 768px) {}

/* LANDSCAPE TABLET/NETBOOK/LAPTOP */

@media only screen and (min-width: 1024px) {}

@media only screen and (min-width: 1280px) {}

/* WIDESCREEN */

/* Increased body size for legibility */

@media only screen and (min-width: 1400px) {}

320andUP

/*URL:http://stuffandnonsense.co.uk/projects/320andup*/

@media only screen and (min-width: 480px) {

/* 480 */

}

@media only screen and (min-width: 600px) {

/* 600 */

}

@media only screen and (min-width: 768px) {

/* 768*/

}

@media only screen and (min-width: 992px) {

/* 992*/

}

@media only screen and (min-width: 1382px) {

/* 1382 */

}

@media only screen and (-webkit-min-device-pixel-ratio: 1.5),

only screen and (min--moz-device-pixel-ratio: 1.5),

only screen and (min-device-pixel-ratio: 1.5) {

/* 2x*/

}

Gridless

/* URL:http://thatcoolguy.github.com/gridless-boilerplate/ */

@media only screen and (min-width: 480px) {

/* Wide mobile (480px+) styles go here */

}

@media only screen and (min-width: 768px) {

/* Tablets/netbooks (768px+) styles go here */

}

@media only screen and (min-width: 1024px) {

/* Desktops (1024px+) styles go here */

}

TotanTHEMES

/*URL:http://titanthemes.com/*/

/* Smaller than standard 960 (devices and browsers) */

@media only screen and (max-width: 959px) {}

/* Tablet Portrait size to standard 960 (devices and browsers) */

@media only screen and (min-width: 768px) and (max-width: 989px) {}

/* All Mobile Sizes (devices and browser) */

@media only screen and (max-width: 767px) {}

/* Mobile Landscape Size to Tablet Portrait (devices and browsers) */

@media only screen and (min-width: 480px) and (max-width: 767px) {}

/* Mobile Portrait Size to Mobile Landscape Size (devices and browsers) */

@media only screen and (max-width: 479px) {}

Responsive Grid System

/*URL:http://responsive.gs/*/

@media (max-width: 480px) {}

@media (min-width: 480px) and (max-width: 768px) {}

@media (min-width: 768px) {}

@media (min-width: 1024px) {}

@media (min-width: 1200px) {}

本文搜集的是Media Queries在各種設備下的代碼片段，希望這些片段能幫大家更好的理解Responsive斷點的設置。如果大家有更好的方案，希望能在評論中分享。

2014年04月19日更新

基于視窗寬度的媒體查詢斷點設置

前提設置body的字體為100%。其具有一個簡單的計算公式：100% = 16px = 1em = 14pt

/*Viewport = 1920px*/

@media screen and (max-width: 120em){

}

/*Viewport = 1680px*/

@media screen and (max-width: 105em){

}

/*Viewport = 1400px*/

@media screen and (max-width: 87.5em){

}

/*Viewport = 1200px*/

@media screen and (max-width: 75em){

}

/*Viewport = 1024px*/

@media screen and (max-width: 64em){

}

/*Viewport = 960px*/

@media screen and (max-width: 60em){

}

/*Viewport = 800px*/

@media screen and (max-width : 50em){

}

/*Viewport = 768px*/

@media screen and (max-width : 48em){

}

/*Viewport = 600px*/

@media screen and (max-width: 37.5em){

}

/*Viewport = 480px*/

@media screen and (max-width: 30em){

}

/*Viewport = 320px*/

@media screen and (max-width: 20em){

}

/*Viewport = 240px*/

@media screen and (max-width: 15em){

}

/*

High Resolution/Retina Display Media Queries

*/

/*Pixel Density 3*/

@media(-webkit-min-device-pixel-ratio: 3),(min-resolution: 192dpi){

}

/*Pixel Density 2*/

@media(-webkit-min-device-pixel-ratio: 2),(min-resolution: 192dpi){

}

/*Pixel Density 1.5*/

@media(-webkit-min-device-pixel-ratio: 1.5),(min-resolution: 124.8dpi){

}

/*Pixel Density 1.25*/

@media(-webkit-min-device-pixel-ratio: 1.25),(min-resolution: 120dpi){

}

/*

Printed Style Media Queries

*/

/*Print Resolution 300 dpi*/

@media print and (min-resolution: 300dpi){

}

/*Print Resolution 144 dpi*/

@media print and (min-resolution:144dpi){

}

/*Print Resolution 96 dpi*/

@media print and (min-resolution:96dpi){

}

/*Print Resolution 72 dpi*/

@media print and (resolution:72dpi){

}