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- 2012-11-8
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CSS3+HTML5 b现来Webz计
传s来说AjabCSSϥΪ颜n\O16进榡An\Orgb榡ANrgb(171,205,239)C
CSS3带来F@Ƿs]z颜⪺kApϥHSL(Hue, Saturation, Light) Mopacity/alphaqDCOA现buFirefox 3+, Chrome 1.0+ MSafari 3+ HΤ@ǭlͪ浏览们CO们iH尽们үAIEInternet Explorer 9~N开l@CSS3ʡC
Opacity
这bO@旧ʡAOHa_OAQIE当eXX尽ެOH@较`杂kC
Opacity将CSS 对HZzAҦlzפ]N当继ӡCx誺语kpUG
opacity: [0-1p数];
ҥH@opacity: 0.5;zmN让对H50%zC尽较s浏览积媺AѪ浏览还Oݭn@ǩwN码ANIE浏览@C
ثe较ѪFirefoxA们ݭnϥ-moz-e缀A对_旧Safari/ChromeA们ݭnϥ-webkit-e缀C对_Ѫ还bϥKHTML内֦ӤOwebkit内֪Safari来说A们ݭnϥ-khtml-C\pG们QC@浏览A们N码应该O这G
opacity: 0.5;
-moz-opacity: 0.5;
-webkit-opacity: 0.5;
-khtml-opacity: 0.5;
ڡAyIIE\办HnaAIȨ这ġAOϥΤF@Ĩp滤镜C传sk简unG
filter:alpha(opacity=50);
请`N对_IE们ݭnϥΟ0100数AӤOopacityʨp数C闷OAInternet Explorer 8ѤF@ķsk来]zCn尝试t@Ĩ记这ġA这O܋몺@ġG
-ms-filter: "progidXImageTransform.Microsoft.Alpha(Opacity=50)";
当MApGAQ旧IE浏览AA将oϥΤWĵuA这]NNӦpGnݮe绝j浏览AAݭnf@CSS语yC
PSGƉbWASafari1.2(2004~)N开lopacityʤFAKHTML内֪Safai难AFAӨƉbWAKonquerorϥ过-khtml-opacityʡAҥH请nAϥΥ(ڦb½译时Ԧ虑媺ʡAҥH}没对WN码@Xץ)COpera9.0开lCSS3opacityAFirefox3.5~ͤopacityCIE8-ms-A[WfilteruOL软Ѥ~@~ڡI过请`NApGAnP时ϥfilterM-ms-filterA请`N将-ms-filter写bfiltereCXX
RGBa
U让们讨论@URGBaCRGBaO对lRGB扩iA[JFĥ|ĉ数GalphaqDCalphaqD数0 1Vp数ANopacityCϥRGBaӤOopacityɬ势OA当ϥRGBa时ԡAzNQ应ΨlC这]N@ӡAAiHb@ijz对HϥΤ@ħzl对HA当Aϥopacity时ԡAz对Hl]OzC
ϥRGBaA简单FG
div {
background: rgb(255,0,0); /* The old one */
background: rgba(255,0,0,0.5); /* The new one */
}
pAݨ쪺A们渐渐q过K[@ĦrMt~@ĉ数N将@ĉb^红Z为bz红FCRGBaQFirefox 3+BSafari 3+BChrome 1.0+HOpera 10CIE还OCCSS-Tricks ѤF@ĨϥΨp滤镜k来让bIEU]iHu@:
<!--[if IE]>
<style type="text/css">
.color-block {
background:transparent;
filter:progidXImageTransform.Microsoft.gradient(startColorstr=#99000050,endColorstr=#99000050);
zoom: 1;
}
>/style>
<![endif]-->
HSL
HSLO@选择颜⪺ܪ观kCpGAݭnAt@I AG@IAϥΤQ进组XN颇烦aC`OAq过HSLANO仅仅@简单数rZC
HSLNHue(调B]称ۡ)BSaturation(饱M)MLightness()CHueNO@Ħ盘颜(ҤW图)Cm选择q过数来̩wA0º NO红A120º O绿A240º NO蓝C当MAAiH选择VPm组XA这AN这ǡG
Saturation(饱M)O该mQϥΤFh֡C0%ܦǫסA]NO们}没ϥ这颜A100%该颜饱满CqU讲A饱M״NO颜⪺`浅{{סA鲜艳{
Lightness()]NO该mhGC较CzmNӷtA较zmNӫGA0% M100%NӤ别为©MաC
ҥHA@Ĩϥξ⪺50%饱M+50%WI对Hݰ_来N这G
div {background: hsl(30, 50%, 80%);}
pGQ让G@ǩΪ̷t@ǡAuݭn调̦Z@ĉ数NiHFC
HSLQj浏览数A]ASafari 3.2+BChromeBFirefoxBOpera 9.6+AIEC
HSLA
当MAHSLA NOHSL 扩iANRGBa@AK[Fĥ|ijz数CϥHSLANRGBa@简单A仅仅b贴W额~数NOKFG
div {background: hsla(30, 50%, 80%, 0.5);}
这ĨҤl]OϥΤFAOK[F50%zC
HSLAQj浏览A]ASafari 3.2+BChromeBFirefoxAIEAMHSLPOAOpera9.6}HSLAAOpera 10~开lHSLAC
f结
显MAHSL MHSLA uQFirefoxBSafariBChromeMOpera浏览较sC对wIE没QopacityMRGBa对应pʤ们ΟġCMӡA这来NA尝试ΥH们b验C
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