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[CSS] 12֪ css ʵ롿

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853017 happy175 2015-9-13 16:13:31
| ʾȫ¥
1F

ϵ½עᣬύѣø๦ܣϴزIJޣ

Ҫ ¼ ſػ鿴ûʺţע  

x
Ϊģƪᵽ12ǰԱճвرϤȷʵʹûǿԺֵ֧ܺCSSɣ֪Щ㣬оCSSкܺõİ

       ڱӢˮƽޣЩطķܲر׼ȷ߲Ǻ⣬УҲŵķʽһЩ򵥵ע͵ĸ⡣λҲԽԭȥĶԱõ˼


       ԭĵַhttp://www.sitepoint.com/12-little-known-css-facts-the-sequel/


       룺TGideas--johnsqliu


-----------------------------------------------------------------------------------------------


        һǰҷˡ12֪cssʵΪֹѳΪվܻӭ¡ƪ·ڣѾΪµռ˸cssСɡǶ֪гɹĵӰӦôһʱֵ԰ɣ


340311437020355.png


ͼƬվ/Natalia Balska


      ϽĿʮܿ϶ǣ󲿷˶ЩٶЩ˽⣬Ҳ֪Щ˵İġ


border-radiusԿʹ'/'бܣǩ 


      ǰҵվдһЩҲЩְоĿߣDz̫ϤЩԡ

      Ųţ±Чborder-radius:
.box {
border-radius: 35px 25px 30px 20px / 35px 25px 15px 30px;
}


֮ǰûмЩܻһЩй淶Ľͣ
     б/ǰֵôбǰֵ趨Բǰ뾶ֵбֵܺ趨İ뾶ֵûбܵĻͰѺֵ趨Ϊȡ

     淶ṩͼ

763731149396848.png

ͼƬעͣborder-top-left-radius: 55pt 25pt ֵԲǵȣ

      ԣбֵе㴴ԳƣֵԲʡϸ˽Щ鿴ԭĵӣߣһMDNṩķ㻥



ܶborder-radius DzȥЩֵMDNҷֵΨһ һȥ޸ĵЩֵ

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 ¥| happy175 2015-9-13 16:23:53
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Ƽ

2ʹbolderlighterعؼֽfont-weightԵ

     ˵font-weight ԵĶ壬ֵҪônormalҪôboldҲżܿΪֵ100,200900.
     Ȼbolderlighterֵᱻǡ
     ݹ淶壬ؼָ˱ȼֵֻ̳ϸֵijֻڴһȼ򵥵ġboldһ߱ ϸһĶȨصֺŵʱֵĸԡ ܻе⣬ʵǸ屾йģ壬õġExo 2УΪϸΪ100bolderһ¾ͱ400bolderһ700ʵbolderlighterи̶ ֵģֻƥ䵽400,700,900ֵļֵ̳Ϊ100200300bolderһ£bolderֵ 400ֵ̳Ϊ900,800lighterһ£ֵһ700ؼʵֻ400700900ֵģ
      뿴±CodePen demo



ʵУʹõһ18ͬʽExo 2塣ҵdemoֻʹ˷бʽΪλֺȨ˵Ѿ㹻ˡ
     ʵ12ӵвͬfont-weight ֵġboxԪأ롮bolder͡lighterԱ˽⵽Ȩڲͬ ļ̳ʲôЧʵеCSSעеעͣԼסÿһġboxǶǰһġ



.box {
font-weight: 100;
}

.box-2 {
font-weight: bolder; /* maps to 400 */
}

.box-3 {
font-weight: bolder; /* maps to 700 */
}

.box-4 {
font-weight: 400;
}

.box-5 {
font-weight: bolder; /* maps to 700 */
}

.box-6 {
font-weight: bolder; /* maps to 900 */
}

.box-7 {
font-weight: 700;
}

.box-8 {
font-weight: bolder; /* maps to 900 */
}

.box-9 {
font-weight: bolder; /* maps to 900 */
}

.box-10 {
font-weight: lighter; /* maps to 700 */
}

.box-11 {
font-weight: lighter; /* maps to 400 */
}

.box-12 {
font-weight: lighter; /* maps to 100 */
}

 Уbolder͡lighterؼֻƥ䵽100,400,700900ֲֵͬ״̬ؼʶƥ䵽200,300,500,600800ֵ
     Ϊڡbold͡lightȥѡȨءѡСȨأǽ̳еѡһԴֻϸһȨءǣȨ300 Open Sans壩ļֵ̳400ôlighterֵͻƥ䵽300.
     һʼܻЩɻ󣬵ԷdemoȥЩؼôġ



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 ¥| happy175 2015-9-13 16:31:18
| ʾȫ¥
Ƽ

5vertical-alignڱDZеʱֲһ

      2000߸ͿʼӴվ̣㴦ܶHTMLʼĻôܻΪvertical-align ǶϵHTML4valignһHTML5ʱģϹҪıǩһ׼

     CSSvertical-align áΪԸţƵĵطڱеı֡
     ԣԱӦڳԪظԪʱʲôһĵطأ
     vertical-align ӦڱԪʱѭ±Щ
  1. ֻinlineinline-blockԪЧ
  2. ԪеݲЧܸıԪinlineinline-blockԪصĶ롣
  3. ı/иline-heightinlineinline-blockԪصĴСõӰ졣   
ʵ





vertical-alignԶinputԪϣͨӦİťԸıvertical-alignֵΪť϶Ӧֵᷢÿֵıinput Ԫصλá
     ʵԳʶԼӦֵһ˽⣬ǿԿһ Christopher Aues 2014 post
       Ӧõеʱvertical-alignֱֵĺܲһʵУԻֵӦһԪԪݻᱻֵͬӰ졣



ʵʾֻĸֵڱЧȻԪbaseline ãvertical-align ıԪڵıڶ뷽ʽҪá
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 ¥| happy175 2015-9-13 16:28:18
| ʾȫ¥
Ƽ

4table-layout

     ܻ룬ǺϵϢˡҶdisplay: tableϤʵֱִеһַDz˵עҪ˵table-layoutԣdisplayԡ

 

     table-layoutԲCSS׽ͣǻ淶͵ģ
"㷨tableĺ򲼾ֲڵԪݣڱĿȡеĿԼ߿͵Ԫļ"

      ҲW3C淶ʷϵһγĶ--LOL JK

      һܸõ⡣еdemoУñcss

table-layout: fixedлťȥлЧر򿪡




 УԿʹtable-layout: fixed Ĭϵauto ֵŵ㡣ܲѻ߱ѡ񣬵ڴпɱݵԪıʱһѡ

     Chris CoyierȥΪһΰĸĽҪһȫʶõϡ

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 ¥| happy175 2015-9-13 16:19:57
| ʾȫ¥
2F
MDNṩķ㻥ӣ

 
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 ¥| happy175 2015-9-13 16:26:10
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4F
3outline-offset

 outline ܹԶ֪Ӱҳ淶һoutline-offsetԣȫʾһ--㶨ӦþԪرƫ
  demoУͨ϶Χ߿ƫĸı䡣ʾеֵ0px30pxȻȫͨcssҪʹҪעľǣȻoutlineһдԣoutline-offsetԣÿζҪٵoutline-offset outline-offsetΨһȱǣIEʹIE11вЧ
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 ¥| happy175 2015-9-13 16:36:13
| ʾȫ¥
7F

6αԪ::first-letterи

       αԪ::first-letterԸԪصĵһĸʽʵӡˢжǰеĶЧdrop-cap ӡˢ鱾оܿĶеĵһֱֺҪЧ
       иϢҪһԪصĸɵı׼ˡ Matt AndrewstwitterϿйģȻǷ²::first-letterѡ⡣±CodePen ʵ


     ĴĴһģҾһȷı֡ŵһ루Ϊĸʱֵܱе֡ǡַҽΪһµαࡣ
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 ¥| happy175 2015-9-13 16:40:40
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8F

7HTML classбʹЧַΪָ

     Ben Everard2013ʱΪֵƹһ¡BenĹ۵бȥHTMLз飬ԱĴܹõĶĹ۵ΪתбһЧַ
     HTMLʵģ
<div class="col col-4 col-8 c-list bx bx--rounded bx--transparent">

ʹбܺ󣬱
<div class="col col-4 col-8 / c-list / bx bx--rounded bx--transparent">

ҲʹκַЧĻ߿ַȥʵͬЧ
<div class="col col-4 col-8 ** c-list ** bx bx--rounded bx--transparent">

<div class="col col-4 col-8 || c-list || bx bx--rounded bx--transparent">

<div class="col col-4 col-8 && c-list && bx bx--rounded bx--transparent">

ЩЧģҲʵȥһ£



 
     ЩָЧķָΪʽ±ߵдǴģдʽҲЧ

./ {
color: blue;
}
ҪЩַʽѡжӦhtmlԪصĻù߰ǽתCSSнʹãдĻǿЧģ
.\/ {
color: blue;
}
⣬Unicode ַԲת壬ĻͿЩ±ijԣ
<div class="♥ "></div>


Ӧʽ

.♥ {
color: hotpink;
}

. {
color: yellow;
}


ȻҲԽЩַת壬ֱӽЩַ뵽ҳС±ߵĴǰĴЧһ

.\2665 {
color: hotpink;
}

.\2605 {
color: yellow;
}



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 ¥| happy175 2015-9-13 16:44:08
| ʾȫ¥
9F

8ظĴǴСֵ

      дCSSؼ֡ʱӦÿanimation-iteration-count 嶯ظִеĴ

.example {
animation-iteration-count: 3;
}

еֵظִ3Ρ֪ܲǿʹСֵ

.example {
animation-iteration-count: .5;
}


УִаΣڵһζѭ;ֹͣһҳϵĶǸöظĴΪ1±ߵظΪ.5
       £ָPCֻSafariвִСģʽԹϵеһbug д˸ĵbugѾ޸ҲԺȶº




Ȥǣĵʱ䲢ڽеĶеԻijֵij100pxִһĵ㲻һ50pxĶõlinear timingЧȷǵڶպͣмλá
      ±øͬĶʹease timingЧ



ԿڶͣмλãΪʹ˲ͬtimingЧ
       timingܵĻᷢʹease-in-out Ҳʹlinear һõڶͣͬλáԷִдСֵtiming functionsֵͬЧ

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 ¥| happy175 2015-9-13 16:47:54
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10F

9ƻڶļдʽӰ춯ʹ

     Щ߿Ѿһ㣬ڹ淶жҲиѡȷ˵µĶ룺

@keyframes reverse {
from {
left: 0;
}

to {
left: 300px;
}
}

.example {
animation: reverse 2s 1s;
}

עʹreverseΪơⲢûʲôףҪע⵱ĴΪһʱʲô



ζЧΪreverseanimation-directionԵһؼ֡κεĶƥ䵽һд﷨еĹؼֵʱ򶼻ᷢͨдᷢanimation-nameĶдʱ򣩡
     ڼд﷨аκζʱܵĹؼ infinitealternaterunningpaused ȵȣᱻϡ

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б

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