url() ? ??: W3C Perspective
CSS?? background-image ??? url() ??? ???? ??? ??. ?????? ????? ????? ?? ???? ? URL? ???? ???? ?? ??? ??? W3C??? ??? ??????
W3C ??
? ??? W3C??? url() ?? ???? ?? ?? ?????. ??? ?? ??? ??? ??? ?????.
- background-image: url(image.png);
- background-image: url("image.png");
- ?? ???: url('image.png');
???? ?? ??
??? W3C? ?? ???? ?? ???? ?? ???? ??? ???? ???.
?? URL? ??, ??, ?? ?? ?? ??? ??? ?? ???? ???? ?? ??? ???? ?? ???? ?? ????. ?? ??? ????? ?????? ? ??? ????? ??? ?????.
??
url()? URI ? ??? ??? ?? ?????.
'url(' followed by optional white space
followed by an optional single quote (') or double quote (") character
followed by the URI itself
followed by an optional single quote (') or double quote (") character
followed by optional white space
followed by ')'
? ?? ??? ??? ?????.
??
url() ?? ???? ?? ??? ???? ?? ??? ???? ??? ??? ?????. W3C ?? ??? ??? ???? CSS ??? ???? ?? ???? ??? ? ????.
? ??? W3C? CSS? 'Background-image' ???? URL ? ??? ??? ??????? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!
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'?? ??? CSS'? ??????
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CSS? ??? ??? ????? ????? ??? ? ?? CSS? ????? ?? ??????, ?? ?? ? ??? ??, ??? ?? ?? ??? CSS ? ????? ?? ??? ?? ???? ???? ??? ??? ???. 1. ?? CSS? ???? HTML? ?? ?????. 2. JavaScript? ?? ??? CSS ??; 3. ??? ??? ???? ?? ???? ????? ??????. 4. CSS? ???? ???? ??? ????. ?? CSS? ???? ?? ??? ???? Rel = "Preload"?????? ????, ??? ?? ??? ????? ???? ??? ?? ? ??? ???? ??? ?????.
?? ? ?? CSS : ?? ?? ??? ??????
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TheBestoproachforcssdspectionseproject'sspecificneeds.forlargerProjects, externalcsSisbetterduetomainabainabainabilitableability ? forsmallerprojectsorsingle-pageapplications, ?? csmightbemoresuitable.it 'scrucialtobalanceprojectsize, ??
? CSS? ???? ???????
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???, cssdoesnothavetobeInlowercase. ???, lowercaseisRecomedended for : 1) ??? ? ??, 2) ??? ?? rorsinerrorsinerrorsIngerRorsIngerRorsInteChnologies, 3) ??? ?? ??, ? 4) ?? ? ???? ????.
CSS ?? ??? : ??? ?? ?????
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cssismostlycase-Insensitive, buturlsandfamilynamesarecase-insensitive.1) propertiesandvalueslikecolor : red; anteOtcase-inditive.2) urlsmustmatchtheserver'scase, ?? ??,/images/logo.png.3) fontfamilynames'opens'mustoccase.
autopRefixer ? ???? ??? ??????
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AutoPrefixer? ?? ???? ??? ???? ?? ?? ???? CSS ??? ???? ???? ?????. 1. ????? ???? ???? ???? ??? ?????. 2. PostCSS ???? ??, CSS? ?? ???? ???? ?? ???? ??? ???? ??? ?? ??? ?????. 3. ?? ???? ???? ??, ??????? ?? ? ?? ???????? ????? ?? ?????. 4. ???? ???? ???? ???? ?? ?? ????, ???? ?? ??? ?? ???? ???? ????? ?? ???? ?? ????.
CSS ??? ? ??????
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CSSCOUNTERSCANAUTOMALLYNUMBERSESSESSENDS.1) USECOUNTER-RESETTIONITIALIZE, CORKENT-INCREMENTTOINCERES, andCOUNTER () ORCOUNTERS () TODISPLAYVALUES.2) COMPINEWITHJAVAISCRIPTORDINAMICCONTENTTOEREACCUTERUPDATES.
CSS : Case Case? ?? ???? ?????
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CSS?? ??? ? ?? ??? ?? ??? ???? ??, ??, URL ? ??? ?? ????? ?? ?? ??? ?????. 1. ???? ?? ??? ??? ? ???? ?? ?? ??? ??????. 2. ?? 16 ?? ??? ?? ??? ?????, ??? ???? ???? ?? ??? ??? ???? ????. 3. URL? ??? ???? ???? ??? ??? ? ????. 4. ??? ?? ?? (??)? ??? ???? ??? ? ???? ??????? ???????.
Conic-Gradient () ??? ??????
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theconic-gradient () functionincsscreatescurcular gradientsthattroTecolorstopsaroundacentral point
