åœéåïŒi18nïŒã®ããã®CSSã«ãŠã³ã¿ãŒæ§åŒãæ¢ããã°ããŒãã«ãªãŒãã£ãšã³ã¹ã®ããã«ç°ãªãèšèªãæåçæèã§æ°åããªã¹ãããã©ãŒãããããæ¹æ³ãåŠã³ãŸãã
CSSã«ãŠã³ã¿ãŒæ§åŒèšèªãµããŒãïŒã°ããŒãã«ãªãŒãã£ãšã³ã¹ã®ããã®åœéåãã©ãŒããã
仿¥ã®ããã«ã°ããŒãã«ã«æ¥ç¶ãããäžçã§ã¯ããŠã§ãéçºè ã¯å€æ§ãªãªãŒãã£ãšã³ã¹ã«å¯Ÿå¿ã§ãããŠã§ããµã€ããã¢ããªã±ãŒã·ã§ã³ãäœæããå¿ èŠããããŸããããã¯ãèšèªã ãã§ãªããç°ãªãå°åã§äœ¿çšãããæåçãªæ £ç¿ãæ°åã·ã¹ãã ãèæ ®ããããšãæå³ããŸããCSSã«ãŠã³ã¿ãŒæ§åŒã¯ããããã®æåçãªãã¥ã¢ã³ã¹ãå°éããæ¹æ³ã§ãªã¹ãããã®ä»ã®çªå·ä»ãã³ã³ãã³ãããã©ãŒãããããããã®åŒ·åãªã¡ã«ããºã ãæäŸããŸãããã®å æ¬çãªã¬ã€ãã§ã¯ãåœéåïŒi18nïŒã®ããã®CSSã«ãŠã³ã¿ãŒæ§åŒã®æ©èœãæ¢ãããããã广çã«äœ¿çšããæ¹æ³ããã¢ã³ã¹ãã¬ãŒã·ã§ã³ããŸãã
CSSã«ãŠã³ã¿ãŒæ§åŒã®çè§£
CSSã«ãŠã³ã¿ãŒã¯ãCSSã«ãŒã«ã«ãã£ãŠç¶æããã倿°ã§ããã䜿çšãããåæ°ã远跡ããŸãããããã¯äž»ã«ãªã¹ããèŠåºãããã®ä»ã®èŠçŽ ã®çªå·ä»ãã«äœ¿çšãããŸããCSSã«ãŠã³ã¿ãŒæ§åŒã¯ãæšæºã®ã¢ã©ãã¢æ°åãããŒãæ°åãè¶ ããŠã«ã¹ã¿ã çªå·ã·ã¹ãã ãå®çŸ©ã§ããããã«ããããšã§ããã®æ©èœãæ¡åŒµããŸããããã¯ãç°ãªãèšèªãæåçãªå¥œã¿ããµããŒãããããã«äžå¯æ¬ ã§ãã
ã«ãŠã³ã¿ãŒæ§åŒã䜿çšããéã«å«ãŸããäž»èŠãªCSSããããã£ã¯æ¬¡ã®ãšããã§ãã
- counter-reset: ã«ãŠã³ã¿ãŒãç¹å®ã®å€ã«åæåãŸãã¯ãªã»ããããŸãã
- counter-increment: ã«ãŠã³ã¿ãŒã®å€ãã€ã³ã¯ãªã¡ã³ãããŸãã
- content:
::beforeãŸãã¯::afterç䌌èŠçŽ ãšçµã¿åãããŠãã«ãŠã³ã¿ãŒã®å€ã衚瀺ããããã«äœ¿çšãããŸãã - counter()ãŸãã¯counters():
contentããããã£å ã§ãã«ãŠã³ã¿ãŒã®å€ããã©ãŒãããããããã«äœ¿çšããã颿°ã§ãã - @counter-style: ãã©ãŒããããå¶åŸ¡ããããŸããŸãªããããã£ãæã€ã«ã¹ã¿ã ã«ãŠã³ã¿ãŒæ§åŒãå®çŸ©ããŸãã
@counter-styleã®å
@counter-styleã«ãŒã«ã¯ãCSSã«ãŠã³ã¿ãŒæ§åŒã®åœéåã®äžå¿ã§ããããã¯ãã«ãŠã³ã¿ãŒå€ãã©ã®ããã«ã¬ã³ããªã³ã°ãããããå¶åŸ¡ããããŸããŸãªããããã£ãæã€ã«ã¹ã¿ã çªå·ã·ã¹ãã ãå®çŸ©ã§ããããã«ããŸãã@counter-styleã«ãŒã«ã®äž»èŠãªããããã£ãèŠãŠã¿ãŸãããã
- system: ã«ãŠã³ã¿ãŒè¡šçŸãçæããããã«äœ¿çšãããã¢ã«ãŽãªãºã ãæå®ããŸããäžè¬çãªå€ã«ã¯ã
cyclicãnumericãalphabeticãsymbolicãfixedãadditiveãªã©ããããŸãã - symbols: æ°åãæåããŸãã¯ã«ã¹ã¿ã æåãªã©ã®ã«ãŠã³ã¿ãŒæ§åŒã«ãã£ãŠäœ¿çšãããã·ã³ãã«ãå®çŸ©ããŸãã
- additive-symbols:
additiveã·ã¹ãã ãšçµã¿åãããŠãã·ã³ãã«ãšãã®å¯Ÿå¿ããæ°å€å€ãå®çŸ©ããããã«äœ¿çšãããŸãã - suffix: åã«ãŠã³ã¿ãŒè¡šçŸã®åŸã«è¿œå ãããããã¹ããæå®ããŸãïŒäŸïŒããªãªããŸãã¯éãæ¬åŒ§ïŒã
- prefix: åã«ãŠã³ã¿ãŒè¡šçŸã®åã«ä»å ãããããã¹ããæå®ããŸãã
- range: ã«ãŠã³ã¿ãŒæ§åŒãé©çšãããå€ã®ç¯å²ãå¶éããŸãã
- pad: 䜿çšããæå°æ¡æ°ãæå®ããå¿ èŠã«å¿ããŠå é ãŒãã§ããã£ã³ã°ããŸãã
- speak-as: ã¢ã¯ã»ã·ããªãã£ã®ããã«ãã¹ã¯ãªãŒã³ãªãŒããŒã«ãã£ãŠã«ãŠã³ã¿ãŒå€ãã©ã®ããã«ã¢ããŠã³ã¹ãããããå¶åŸ¡ããŸãã
- fallback: çŸåšã®æ§åŒããã©ãŠã¶ã§ãµããŒããããŠããªãå Žåã«äœ¿çšããããã©ãŒã«ããã¯ã«ãŠã³ã¿ãŒæ§åŒãæå®ããŸãã
@counter-styleã䜿çšããåœéåã®äŸ
ããã§ã¯ã@counter-styleã䜿çšããŠãããŸããŸãªèšèªãæåçãªæèã§ã«ãŠã³ã¿ãŒããã©ãŒãããããããã€ãã®å®çšçãªäŸãèŠãŠã¿ãŸãããã
1.ã¢ã©ãã¢æ°åãšã¢ã©ãã¢ã»ã€ã³ãã£ãã¯æ°å
ã¢ã©ãã¢æ°åïŒ0ã9ïŒã¯åºã䜿çšãããŠããŸãããå€ãã®ã¢ã©ãã¢èªåã§ã¯ã¢ã©ãã¢ã»ã€ã³ãã£ãã¯æ°åïŒÙ â-Ù©âïŒã䜿çšããããšã奜ãŸããŸãããããå®çŸããããã®ã«ãŠã³ã¿ãŒæ§åŒãäœæã§ããŸãã
@counter-style arabic-indic {
system: numeric;
symbols: 'Ù ' 'Ù¡' 'Ù¢' 'Ù£' 'Ù€' 'Ù¥' 'ÙŠ' 'Ù§' 'Ùš' 'Ù©';
suffix: '. ';
}
ol {
list-style: none;
counter-reset: item;
}
ol li {
counter-increment: item;
}
ol li::before {
content: counter(item, arabic-indic);
}
ãã®ã³ãŒãã¯arabic-indicãšããååã®ã«ãŠã³ã¿ãŒæ§åŒãå®çŸ©ããŠãããã¢ã©ãã¢ã»ã€ã³ãã£ãã¯æ°åãã·ã³ãã«ãšããŠäœ¿çšããŸããsuffixããããã£ã¯ãåæ°åã®åŸã«ããªãªããšã¹ããŒã¹ã远å ããŸããæ¬¡ã«ãCSSã¯ãã®æ§åŒãé åºä»ããªã¹ãïŒ<ol>ïŒã«é©çšããŠãã¢ã©ãã¢ã»ã€ã³ãã£ãã¯åœ¢åŒã§æ°åã衚瀺ããŸãã
2.ããŒãæ°åïŒå€§æåãšå°æåïŒ
ããŒãæ°åã¯ããŸããŸãªæèã§äžè¬çã«äœ¿çšãããŠãããCSSã«ãŠã³ã¿ãŒæ§åŒã¯ããããç°¡åã«åŠçã§ããŸãã
@counter-style upper-roman {
system: upper-roman;
}
@counter-style lower-roman {
system: lower-roman;
}
ol.upper-roman {
list-style: none;
counter-reset: item;
}
ol.upper-roman li {
counter-increment: item;
}
ol.upper-roman li::before {
content: counter(item, upper-roman) '. ';
}
ol.lower-roman {
list-style: none;
counter-reset: item;
}
ol.lower-roman li {
counter-increment: item;
}
ol.lower-roman li::before {
content: counter(item, lower-roman) '. ';
}
ãã®äŸã¯ã倧æåïŒupper-romanïŒãšå°æåïŒlower-romanïŒã®ããŒãæ°åã«ãŠã³ã¿ãŒæ§åŒãäœæããæ¹æ³ã瀺ããŠããŸãããã®åŸãCSSã¯ã©ã¹ïŒ.upper-romanããã³.lower-romanïŒã䜿çšããŠããããã®æ§åŒãç°ãªããªã¹ãã«é©çšã§ããŸããããšãã°ïŒ
<ol class="upper-roman">
<li>Item 1</li>
<li>Item 2</li>
<li>Item 3</li>
</ol>
<ol class="lower-roman">
<li>Item 1</li>
<li>Item 2</li>
<li>Item 3</li>
</ol>
3.ã°ã«ãžã¢æ°å
ã°ã«ãžã¢æ°åã¯æåã䜿çšããç¬ç¹ã®ã·ã¹ãã ã䜿çšããŠããŸããæ°åãã°ã«ãžã¢èªã§è¡šçŸããããã®ã«ãŠã³ã¿ãŒæ§åŒãå®çŸ©ã§ããŸãã
@counter-style georgian {
system: fixed;
symbols: 'á' 'á' 'á' 'á' 'á' 'á' 'á' 'á' 'á' 'á' 'á' 'á' 'á' 'á' 'á' 'á' 'á ' 'á¡' 'á¢' 'á£' 'á€' 'á¥' 'áŠ' 'á§' 'áš' 'á©' 'áª' 'á«' 'á¬' 'á' 'á®' 'á¯' 'á°';
suffix: '. ';
range: 1 33;
}
ol.georgian {
list-style: none;
counter-reset: item;
}
ol.georgian li {
counter-increment: item;
}
ol.georgian li::before {
content: counter(item, georgian);
}
ãã®äŸã§ã¯ãã°ã«ãžã¢ã®æ°åã·ã¹ãã ã«æåã®33åã®æ°åã®éå®ãããã»ããã®ã·ã³ãã«ããããããfixedã·ã¹ãã ã䜿çšããŠããŸããrangeããããã£ã¯ãã«ãŠã³ã¿ãŒæ§åŒã1ãã33ã®å€ã«å¶éããŸãã33ãè¶
ããæ°åã®å Žåã¯ãããè€éãªããžãã¯ãŸãã¯å¥ã®çªå·ã·ã¹ãã ãå®è£
ããå¿
èŠããããŸãã
4.ã¢ã«ã¡ãã¢æ°å
ã°ã«ãžã¢ãšåæ§ã«ãã¢ã«ã¡ãã¢æ°åãæåã䜿çšããŠæ°åã衚ããŸãã
@counter-style armenian {
system: fixed;
symbols: 'Ô±' 'Ô²' 'Ô³' 'ÔŽ' 'Ôµ' 'Ô¶' 'Ô·' 'Ôž' 'Ô¹' 'Ôº' 'Ô»' 'ÔŒ' 'Ôœ' 'ÔŸ' 'Ô¿' 'Õ' 'Õ' 'Õ' 'Õ' 'Õ' 'Õ
' 'Õ' 'Õ' 'Õ' 'Õ' 'Õ' 'Õ' 'Õ' 'Õ' 'Õ' 'Õ' 'Õ' 'Õ' 'Õ' 'Õ' 'Õ' 'Õ' 'Õ';
suffix: '. ';
range: 1 39;
}
ol.armenian {
list-style: none;
counter-reset: item;
}
ol.armenian li {
counter-increment: item;
}
ol.armenian li::before {
content: counter(item, armenian);
}
ãã®äŸã¯ã°ã«ãžã¢ã®äŸã«äŒŒãŠãããfixedã·ã¹ãã ã䜿çšããã¢ã«ã¡ãã¢æåãã·ã³ãã«ãšããŠå®çŸ©ããŠããŸããrangeã¯1ã39ã«èšå®ãããŠãããåºæ¬çãªã¢ã«ã¡ãã¢æ°åã»ãããã«ããŒããŠããŸãã
5. CJKæ°åïŒäžåœèªãæ¥æ¬èªãéåœèªïŒ
CJKæ°åã¯ããè€éã§ããã©ãŒãã«ããã³ã€ã³ãã©ãŒãã«ãªæèã§ç°ãªã圢åŒããããç²åºŠã®ã¬ãã«ãç°ãªããŸããç°¡äœåäžåœèªãèŠãŠã¿ãŸãããã
@counter-style simplified-chinese {
system: numeric;
symbols: 'äž' 'äº' 'äž' 'å' 'äº' 'å
' 'äž' 'å
«' 'ä¹';
suffix: '';
}
@counter-style simplified-chinese-formal {
system: fixed;
symbols: 'é¶' '壹' '莰' 'å' 'è' 'äŒ' 'é' 'æ' 'æ' 'ç';
suffix: '';
}
ol.simplified-chinese {
list-style: none;
counter-reset: item;
}
ol.simplified-chinese li {
counter-increment: item;
}
ol.simplified-chinese li::before {
content: counter(item, simplified-chinese) 'ã';
}
ol.simplified-chinese-formal {
list-style: none;
counter-reset: item;
}
ol.simplified-chinese-formal li {
counter-increment: item;
}
ol.simplified-chinese-formal li::before {
content: counter(item, simplified-chinese-formal) 'ã';
}
ããã¯ç°¡ç¥åããã衚çŸã§ããããšã«æ³šæããŠãã ãããå®å
šãªCJKæ°åãµããŒããç¹ã«å€§ããªæ°åã®å Žåã¯ãadditiveã·ã¹ãã ã®äœ¿çšãšäœïŒ10ã100ã1000ãªã©ïŒã®åŠçãå«ããããè€éãªå®è£
ãå¿
èŠã«ãªããŸãããã®ã³ãŒãã¯åºæ¬çãªæ°å衚çŸã瀺ããŠããŸãã
é«åºŠãªãã¯ããã¯ãšèæ ®äºé
1.ã«ãŠã³ã¿ãŒæ§åŒã®çµã¿åãã
è€æ°ã®ã«ãŠã³ã¿ãŒæ§åŒãçµã¿åãããŠãããè€éãªçªå·ä»ãã¹ããŒã ãäœæã§ããŸããããšãã°ãç« ã®ãã©ã€ããªã«ãŠã³ã¿ãŒãšãåç« å ã®ã»ã¯ã·ã§ã³ã®ã»ã«ã³ããªã«ãŠã³ã¿ãŒã䜿çšããå ŽåããããŸãã
body {
counter-reset: chapter section;
}
h1 {
counter-increment: chapter;
counter-reset: section;
}
h2 {
counter-increment: section;
}
h1::before {
content: counter(chapter) '. ';
}
h2::before {
content: counter(chapter) '.' counter(section) '. ';
}
ãã®ã³ãŒãã¯éå±€çãªçªå·ä»ãã·ã¹ãã ãäœæããç« ã¯é£çªã§çªå·ä»ããããã»ã¯ã·ã§ã³ã¯åç« å ã§çªå·ä»ããããŸãïŒäŸïŒ1.1ã1.2ã2.1ã2.2ïŒã
2.ã¢ã¯ã»ã·ããªãã£ã®èæ ®äºé
ã«ãŠã³ã¿ãŒæ§åŒãé害ãæã€ãŠãŒã¶ãŒã«ã¢ã¯ã»ã·ãã«ã§ããããšã確èªããŠãã ãããspeak-asããããã£ã䜿çšããŠãã«ãŠã³ã¿ãŒå€ãã¹ã¯ãªãŒã³ãªãŒããŒã«ãã£ãŠã©ã®ããã«ã¢ããŠã³ã¹ãããããå¶åŸ¡ããŸããããšãã°ïŒ
@counter-style my-style {
system: numeric;
symbols: '1' '2' '3';
speak-as: numbers;
}
speak-as: numbers;ããããã£ã¯ãã¹ã¯ãªãŒã³ãªãŒããŒã«ã«ãŠã³ã¿ãŒå€ãæ°å€ãšããŠã¢ããŠã³ã¹ããããã«æç€ºããŸãããã®ä»ã®ãªãã·ã§ã³ã«ã¯ãspell-outïŒæ°å€ãã¹ãã«ã¢ãŠãããããïŒãšbulletsïŒã«ãŠã³ã¿ãŒãç®æ¡æžããšããŠã¢ããŠã³ã¹ããããïŒããããŸãã
ããã«ãã«ãŠã³ã¿ãŒæ§åŒã§äœ¿çšãããŠããã«ã¹ã¿ã ã·ã³ãã«ã®ä»£æ¿ããã¹ããŸãã¯èª¬æãæäŸããŠãèŠèŠé害ã®ãããŠãŒã¶ãŒãçªå·ä»ããããã³ã³ãã³ãã®æå³ãçè§£ã§ããããã«ããŠãã ããã
3.ãã©ãŠã¶ã®äºææ§
CSSã«ãŠã³ã¿ãŒæ§åŒã¯ææ°ã®ãã©ãŠã¶ã§åºããµããŒããããŠããŸãããå€ããã©ãŠã¶ããŒãžã§ã³ãèæ
®ããããšãéèŠã§ããfallbackããããã£ã䜿çšããŠããã©ãŠã¶ããã©ã€ããªæ§åŒããµããŒãããŠããªãå Žåã«äœ¿çšããããã©ãŒã«ããã¯ã«ãŠã³ã¿ãŒæ§åŒãæå®ããŸããããšãã°ïŒ
@counter-style my-style {
system: cyclic;
symbols: 'â' 'â';
fallback: disc;
}
ãã®äŸã§ã¯ããã©ãŠã¶ãcyclicã·ã¹ãã ãŸãã¯ã«ã¹ã¿ã ã·ã³ãã«ããµããŒãããŠããªãå Žåãdiscãªã¹ãæ§åŒã«ãã©ãŒã«ããã¯ããŸãã
4.æåçãªé æ ®
ããŸããŸãªèšèªãæåã®ã«ãŠã³ã¿ãŒæ§åŒãå®è£ ããéã«ã¯ãæåçãªé æ ®ã«æ³šæããŠãã ãããåå°åã®é©åãªçªå·ä»ãèŠåãšã·ã³ãã«ã調æ»ããŠãã ãããäžå¿«ãŸãã¯äžé©åãªå¯èœæ§ã®ããã·ã³ãã«ã圢åŒã®äœ¿çšã¯é¿ããŠãã ããã
ããšãã°ãäžéšã®æåã§ã¯ãæ°åã·ã¹ãã ã«ç°ãªãå¥èªç¹ãåºåãæåã䜿çšããããšã奜ãŸããå ŽåããããŸããã«ãŠã³ã¿ãŒæ§åŒããããã®å¥œã¿ãå°éããããšã確èªããŠãã ããã
å®è·µçãªå¿çšãšãŠãŒã¹ã±ãŒã¹
CSSã«ãŠã³ã¿ãŒæ§åŒã¯ãããŸããŸãªãŠã§ãéçºã·ããªãªã§äœ¿çšã§ããŸãã
- ç®æ¬¡ã®çæïŒç®æ¬¡å ã®èŠåºããšå°èŠåºãã«èªåçã«çªå·ãä»ããŸãã
- çªå·ä»ããªã¹ãã®äœæïŒããŸããŸãªèšèªãæ§åŒã§çªå·ä»ããªã¹ãããã©ãŒãããããŸãã
- ãã¥ãŒããªã¢ã«ã®ã¹ãããã®çªå·ä»ãïŒæç¢ºã§èŠèŠçã«é åçãªçªå·ä»ãã§ããŠãŒã¶ãŒãäžé£ã®ã¹ãããã«å°ããŸãã
- ã«ã¹ã¿ã ããŒãžããŒã·ã§ã³ã®å®è£ ïŒãŠããŒã¯ãªçªå·ä»ãã¹ããŒã ãæã€ã«ã¹ã¿ã ããŒãžããŒã·ã§ã³ã³ã³ãããŒã«ãäœæããŸãã
- ã©ã³ãã³ã°ãªã¹ãã®è¡šç€ºïŒããŸããŸãªã«ãŠã³ã¿ãŒæ§åŒã䜿çšããŠãã©ã³ãã³ã°ãèŠèŠçã«é åçãªæ¹æ³ã§è¡šç€ºããŸãã
- æ³çææžã®çæïŒç¹å®ã®çªå·ä»ãèŠä»¶ãæã€æ³çææžããã©ãŒãããããŸãã
- ç§åŠè«æã®ãã©ãŒãããïŒé©åãªçªå·ä»ãã§ãæ¹çšåŒãå³ã衚ã衚瀺ããŸãã
CSSã«ãŠã³ã¿ãŒæ§åŒã䜿çšããããã®ãã¹ããã©ã¯ãã£ã¹
CSSã«ãŠã³ã¿ãŒæ§åŒã广çã§ä¿å®å¯èœã§ããããšã確èªããããã«ããããã®ãã¹ããã©ã¯ãã£ã¹ã«åŸã£ãŠãã ããã
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