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Table of Contents
什么是CSS hack？" >什么是CSS hack？
CSS hack的原理" >CSS hack的原理
CSS hack分類" >CSS hack分類
CSS hack方式一：條件注釋法:" >CSS hack方式一：條件注釋法:
CSS hack方式二：類內(nèi)屬性前綴法:" >CSS hack方式二：類內(nèi)屬性前綴法:
CSS hack方式三：選擇器前綴法:" >CSS hack方式三：選擇器前綴法:
Home Web Front-end HTML Tutorial css style --- CSS hack

css style --- CSS hack

Aug 30, 2016 am 09:21 AM

　　前端樣式，雖然不是經(jīng)常需要hack，但是我們經(jīng)常會(huì)遇到各瀏覽器表現(xiàn)不一致的情況?；诖耍承┣闆r我們會(huì)極不情愿的使用這個(gè)不太友好的方式來達(dá)到大家要求的頁(yè)面表現(xiàn)。我個(gè)人是不太推薦使用hack的，要知道一名好的前端，要盡可能不使用hack的情況下實(shí)現(xiàn)需求，做到較好的用戶體驗(yàn)?？墒前?，現(xiàn)實(shí)太殘酷，瀏覽器廠商之間歷史遺留的問題讓我們?cè)谀繕?biāo)需求下不得不向hack妥協(xié)，雖然這只是個(gè)別情況。今天，結(jié)合自己的經(jīng)驗(yàn)和理解，做了幾個(gè)demo把IE6~IE10和其他標(biāo)準(zhǔn)瀏覽器的CSS hack做一個(gè)總結(jié)，也許本文應(yīng)該是目前最全面的hack總結(jié)了吧。

什么是CSS hack？

　　由于不同廠商的流覽器或某瀏覽器的不同版本（如IE6-IE11,Firefox/Safari/Opera/Chrome等），對(duì)CSS的支持、解析不一樣，導(dǎo)致在不同瀏覽器的環(huán)境中呈現(xiàn)出不一致的頁(yè)面展現(xiàn)效果。這時(shí)，我們?yōu)榱双@得統(tǒng)一的頁(yè)面效果，就需要針對(duì)不同的瀏覽器或不同版本寫特定的CSS樣式，我們把這個(gè)針對(duì)不同的瀏覽器/不同版本寫相應(yīng)的CSS code的過程，叫做CSS hack!

CSS hack的原理

由于不同的瀏覽器和瀏覽器各版本對(duì)CSS的支持及解析結(jié)果不一樣，以及CSS優(yōu)先級(jí)對(duì)瀏覽器展現(xiàn)效果的影響，我們可以據(jù)此針對(duì)不同的瀏覽器情景來應(yīng)用不同的CSS。

CSS hack分類

CSS Hack大致有3種表現(xiàn)形式，CSS屬性前綴法、選擇器前綴法以及IE條件注釋法（即HTML頭部引用if IE）Hack，實(shí)際項(xiàng)目中CSS Hack大部分是針對(duì)IE瀏覽器不同版本之間的表現(xiàn)差異而引入的。

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