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Video: Html5 syntax yog dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
HTML5 - Syntax . Kev tshaj tawm. HTML 5 hom lus muaj "kev cai" HTML syntax uas yog sib xws nrog HTML 4 thiab XHTML1 cov ntaub ntawv luam tawm nyob rau hauv lub Web, tab sis tsis tau tshaj esoteric SGML nta ntawm HTML 4.
Ib yam li ntawd, dab tsi yog syntax rau kev siv HTML?
12 HTML syntax
- Optionally, ib tug U + FEFF BYTE ORDER MARK (BOM) tus cwj pwm.
- Ib tus lej ntawm cov lus pom thiab ASCII whitespace.
- Ib DOCTYPE.
- Ib tus lej ntawm cov lus pom thiab ASCII whitespace.
- Cov ntaub ntawv keeb, nyob rau hauv daim ntawv ntawm ib qho html element.
- Ib tus lej ntawm cov lus pom thiab ASCII whitespace.
Tsis tas li ntawd, cov ntaub ntawv html5 yog dab tsi? HTML5 yog ib qho software daws teeb meem uas txhais cov khoom thiab kev coj cwj pwm ntawm cov nplooj ntawv nplooj ntawv los ntawm kev siv cov cim cim raws li nws. HTML5 yog npaj rau subsume tsis yog HTML 4 xwb, tab sis kuj XHTML 1 thiab DOM Level 2 HTML.
Ib yam li ntawd, qhov tseeb syntax ntawm doctype hauv html5 yog dab tsi?
Hauv HTML 4.01, the tshaj tawm hais txog DTD, vim HTML 4.01 yog raws li SGML. Lub DTD qhia cov cai rau cov lus cim, kom cov browsers ua cov ntsiab lus kom raug. HTML5 tsis yog raws li SGML, thiab yog li tsis tas yuav tsum tau siv rau DTD.
P txhais li cas hauv coding?
Qhov < p > tag txhais ib nqe lus. Browsers cia li ntxiv qee qhov chaw (nplooj) ua ntej thiab tom qab txhua < p > element. Cov margins tuaj yeem hloov kho nrog CSS (nrog rau cov khoom sib txawv).
Pom zoo:
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